US2836576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous pellicle comprising oriented ethylene terephthalate polymer and amorphous ethylene terephthalate binder and process for making same
Assignee: EIDP Inc
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Filing: 1954-12-31
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Granted: 1958-05-27
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Expires: 1974-12-31
Abstract
No abstract record available.
Inventors
- 👤 John A Piccard
- 👤 Frank K Signaigo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:11
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/60; C; C08; C08L; C08L67/00; C08L67/02; D04H1/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A FIBROUS PELLICLE COMPRISING A BONDED MASS OF A FIBER OF A MOLECULARLY-ORIENTED ETHYLENE TEREPHTHALATE POLYMER AND AN UNORIENTED ETHYLENE TEREPHTHALATE POLYMER BINER; THE SAID ETHYLENE TEREPHTHALATE POLYMER OF BOTH THE FIBER AND BINDER BEING A LINEAR POLYESTER CONTAINING A PREPONDERANCE OF ETHYLENE TEREPHTHALATE IN THE POLYMER CHAIN.
Claim 2
Dependent Claim
48 words
A FIBROUS PELLICLE COMPRISING A BONDED MASS OF A FIBER OF A MOLECULARLY-ORIENTED ETHYLENE TEREPHTHALATE POLYMER AND AN UNORIENTED ETHYLENE TEREPHTHALATE POLYMER BINER; THE SAID ETHYLENE TEREPHTHALATE POLYMER OF BOTH THE FIBER AND BINDER BEING A LINEAR POLYESTER CONTAINING A PREPONDERANCE OF ETHYLENE TEREPHTHALATE IN THE POLYMER CHAIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |