Patent US2664760A successfully refreshed from Google Patents.
US2664760A
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US
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Antifriction gear assembly
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1951-02-20
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Granted: 1954-01-05
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Expires: 1971-02-20
Abstract
No abstract record available.
Inventors
- 👤 James H Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:32
CPC Classifications
B; B62; B62D; B62D3/00; B62D3/02; B62D3/04; B62D3/06; B62D3/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19949; Y10T74/19953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR575221A
Cited
US1152001A
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US1661988A
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US1967482A
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US2455487A
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US2404378A
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US2406028A
Cited
US2451998A
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US2520784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |