US2053344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making hinges
Assignee: Atwood Vacuum Machine Co
•
Filing: 1935-06-15
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Granted: 1936-09-08
•
Expires: 1955-06-15
Abstract
No abstract record available.
Inventors
- 👤 Walter R Lustig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:13
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/38; B21D53/40; Y; Y10; Y10S; Y10S16/00; Y10S16/42; Y10T; Y10T29/00; Y10T29/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-09-08 | 1940-03-09 | 1940-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-08 | 1944-03-09 | 1944-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-08 | 1948-03-09 | 1948-09-08 | $7700.00 | Window Closed / Lapsed |