US2744420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable slack compensator
Assignee: Northrop Grumman Corp
•
Filing: 1952-07-11
•
Granted: 1956-05-08
•
Expires: 1972-07-11
Abstract
No abstract record available.
Inventors
- 👤 John D Pigford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:11
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24; B64C13/26; B64C13/28; B64C13/30; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20408
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1159720A
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US1561897A
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US1671081A
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GB321851A
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US2140037A
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US2122442A
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US2298611A
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US2396951A
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US2445343A
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US2424198A
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US2604657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |