US2421925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip-friction coupling
Assignee: TIMES FACSIMILE Corp
•
Filing: 1943-09-11
•
Granted: 1947-06-10
•
Expires: 1963-09-11
Abstract
No abstract record available.
Inventors
- 👤 Austin G Cooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:50
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; F; F16; F16D; F16D7/00; F16D7/02; F16D7/024; F16D7/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1365732A
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US1594054A
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US1734598A
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GB286183A
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US1832488A
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CH143096A
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US2050542A
Cited
GB533842A
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US2277107A
Cited
US2295572A
Cited
US2339133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-09 | 1950-12-09 | 1951-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-09 | 1954-12-09 | 1955-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-09 | 1958-12-09 | 1959-06-10 | $7700.00 | Window Closed / Lapsed |