US2804909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming sheet material
Assignee: Individual
•
Filing: 1954-06-23
•
Granted: 1957-09-03
•
Expires: 1974-06-23
Abstract
No abstract record available.
Inventors
- 👤 Hammer Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:53
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/02; B29C63/04; B29C63/042; B29C2793/00; B29C2793/0081; B29K; B29K2711/00; B29K2711/12; B29K2711/126; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1043; Y10T156/1044; Y10T156/1052; Y10T156/108; Y10T156/1082
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2603390A
Cited
US1808582A
Cited
US1944282A
Cited
DE572680C
Cited
GB371344A
Cited
US1993082A
Cited
US2021095A
Cited
US2074482A
Cited
US2123377A
Cited
US2284254A
Cited
US2251622A
Cited
US2347538A
Cited
US2298690A
Cited
US2293184A
Cited
US2556060A
Cited
US2490111A
Cited
US2550455A
Cited
US2487631A
Cited
US2739640A
Cited
US2482981A
Cited
US2648370A
Cited
US2661789A
Cited
US2682491A
Cited
US2714571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |