US2621868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stock reel or coil holder
Assignee: GEORGE FREDERICK CLARK
•
Filing: 1950-07-03
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Granted: 1952-12-16
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Expires: 1970-07-03
Abstract
No abstract record available.
Inventors
- 👤 Clark George Frederick
- 👤 Clark John George
- 👤 Clark Richard Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:52
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/16; B21C47/18; B21C47/20; B65; B65H; B65H49/00; B65H49/18; B65H49/20; B65H49/28; Y; Y10; Y10S; Y10S242/00; Y10S242/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US765650A
Cited
US1007039A
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US1037950A
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US1404284A
Cited
US1520748A
Cited
US1956398A
Cited
US2220481A
Cited
US2390158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |