US2674295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means fob expanding
Assignee: —
•
Filing: 1950-12-13
•
Granted: 1954-04-06
•
Expires: 1970-12-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:23
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/36; E04C2/365; B; B29; B29C; B29C55/00; B29C55/02; B29C55/04; B29C55/06; B29C67/00; B31; B31D; B31D3/00; B31D3/02; B31D3/0292; D; D06; D06C; D06C3/00; D06C2700/00; D06C2700/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2429177A
Cited
US2314318A
Cited
US2305853A
Cited
US2345232A
Cited
US2608502A
Cited
US2622999A
Cited
US2525003A
Cited
US2581421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |