US2756573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-ambiguous coupler
Assignee: Collins Radio Co
•
Filing: 1954-04-26
•
Granted: 1956-07-31
•
Expires: 1974-04-26
Abstract
No abstract record available.
Inventors
- 👤 Robert A Colby
- 👤 Bennett J Copeland
- 👤 Harry M Passman
- 👤 Paul G Wulfsberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:21
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US832877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |