US3220102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming sheet material
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1962-03-26
•
Granted: 1965-11-30
•
Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Lieberman Irving
- 👤 Zernow Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:38
CPC Classifications
B; B21; B21D; B21D26/00; B21D26/02; B21D26/021; B21D26/031; Y; Y10; Y10S; Y10S264/00; Y10S264/44; Y10S425/00; Y10S425/048; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A METHOD OF FORMING SHEET MATERIAL COMPRISING: FILLING AS A CONTAINER WITH A MATERIAL THAT IS IN LIQUID FORM AT ROOM TEMPERATURE AND ATMOSPHERIC PRESSURE, SOLIDIFYING THE LIQUID MATERIAL, SHAPING A SURFACE OF THE SOLIDIFIED LIQUID MATERIAL INTO A OCNFIGURATION SIMILAR TO A SHAPE DESIRED IN THE SHEET MATERIAL, PLACING THE SHEET MATERIAL OVER THE CONTAINER, AND FORCING THE SHEET MATERIAL INTO ENGAGEMENT WITH THE SHAPED SURFACE OF THE SOLIDIFIED LIQUID MATERIAL.
Claim 2
Independent Claim
72 words
A METHOD OF FORMING SHEET MATERIAL COMPRISING: FILLING AS A CONTAINER WITH A MATERIAL THAT IS IN LIQUID FORM AT ROOM TEMPERATURE AND ATMOSPHERIC PRESSURE, SOLIDIFYING THE LIQUID MATERIAL, SHAPING A SURFACE OF THE SOLIDIFIED LIQUID MATERIAL INTO A OCNFIGURATION SIMILAR TO A SHAPE DESIRED IN THE SHEET MATERIAL, PLACING THE SHEET MATERIAL OVER THE CONTAINER, AND FORCING THE SHEET MATERIAL INTO ENGAGEMENT WITH THE SHAPED SURFACE OF THE SOLIDIFIED LIQUID MATERIAL.
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |