US2487726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spool
Assignee: Hubbard Spool Co
•
Filing: 1946-01-17
•
Granted: 1949-11-08
•
Expires: 1966-01-17
Abstract
No abstract record available.
Inventors
- 👤 Edward W Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:37
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/50; B65H2701/51; B65H2701/515
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US431800A
Cited
US827911A
Cited
US962452A
Cited
US1528128A
Cited
US1609473A
Cited
US2264117A
Cited
US2316028A
Cited
US2354375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |