Patent US4154308A successfully refreshed from Google Patents.
Patent US2277260A successfully refreshed from Google Patents.
US2277260A
Expired / Lapsed
US
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Collet
Assignee: Individual
•
Filing: 1939-10-16
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Granted: 1942-03-24
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Expires: 1959-10-16
Abstract
No abstract record available.
Inventors
- 👤 Irving H Sheffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:28
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/202; B23B31/207; B23B31/2073; B23B2231/00; B23B2231/20; B23B2231/2027; B23B2231/2037; B23B2231/204; B23B2231/2048; B23B2231/2062; B23B2231/2072; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17418; Y10T279/17452; Y10T279/17529; Y10T279/34; Y10T279/3462
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) | 1945-03-23 | 1945-09-22 | 1946-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-23 | 1949-09-22 | 1950-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-23 | 1953-09-22 | 1954-03-24 | $7700.00 | Window Closed / Lapsed |