US2734571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
martell
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:42
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/04; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4458; Y10T83/446; Y10T83/525; Y10T83/541; Y10T83/543
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US605928A
Cited
US1155124A
Cited
US1385369A
Cited
US1689110A
Cited
GB293044A
Cited
US2077439A
Cited
US2368001A
Cited
US2399113A
Cited
US2537499A
Cited
US2427515A
Cited
FR920756A
Cited
US2629440A
Cited
US2452402A
Cited
US2650822A
Cited
US2648183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |