Patent US3769120A successfully refreshed from Google Patents.
US3769120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making thermoplastic net-like product
Assignee: Fribourg SA
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Filing: 1971-05-21
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Granted: 1973-10-30
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Expires: 1991-05-21
Abstract
Abstract This invention is concerned with a method of thermoplastic polymeric resin or resin adhesive deposition or adhesive bonding in which a thin film of thermoplastic resin with a special arrangement of slits or cuts is applied to a surface and heat is applied to bring the resin to heat-softened condition and cause the film to assume a pattern directly related to the arrangements of slits or cuts. The invention also relates to the open pattern resin or resin adhesive sheet resulting from heating of the cut or slit film.
Inventors
- 👤 E Chandler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:35
CPC Classifications
C; C09; C09J; C09J5/00; A; A43; A43D; A43D25/00; A43D25/20; C09J7/00; C09J7/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1026; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24314
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
40 words
The method of claim 1 in which said film or sheet is in the form of a strip having a length greater than its width and said slits or cuts are elongated and arranged longitudinally with respect to said strip.
Claim 2
Dependent Claim
20 words
The method of claim 1 in which said application of heat is by directing radiant heat to said exposed surface.
Claim 3
Dependent Claim
20 words
The method of claim 1 in which said application of heat is by directing a hot gas against said surface.
Claim 4
Dependent Claim
20 words
The method of claim 1 in which said film or strip has a thickness of not over about 0.03 inch.
Claim 5
Dependent Claim
53 words
The method of claim 1 in which said slits or cuts comprise spaced parallel lines of interrupted cuts with the cuts of one line disposed opposite uncut portions of adjacent lines of interrupted cuts and with the ends of the cuts of one line overlapping the ends of the cuts of adjacent lines.
Claim 6
Dependent Claim
29 words
The method of claim 5 in which the width of the film or sheet seCtions between said slits or cuts is not over about 1/8 inch in each instance.
Claim 7
Dependent Claim
31 words
The method of claim 6 in which the thickness of said film or strip is not more than one-third the widths of the spaces between said lines of slits or cuts.
Claim 8
Dependent Claim
65 words
The method of claim 2 in which said slits comprise spaced parallel lines of interrupted cuts with the cuts of one line disposed opposite uncut portions of adjacent lines of interrupted cuts and with the ends of the cuts of one line overlapping the ends of the cuts of adjacent lines and said film or strip has a thickness of not over about 0.03 inch.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |