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Patent US2645432A successfully refreshed from Google Patents.
US2645432A
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Detachable spring connecting means for spring driven reels
Assignee: McCaffrey Ruddock Tagline Corp
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Filing: 1949-05-09
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Granted: 1953-07-14
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Expires: 1969-05-09
Abstract
No abstract record available.
Inventors
- 👤 Henry V Griffitts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:11
CPC Classifications
H; H02; H02G; H02G11/00; H02G11/02; B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/48; B65H75/486; B65H2701/00; B65H2701/30; B65H2701/34; B65H2701/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303002A
Cited
US2367912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |