US3052431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural element
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1960-12-19
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Granted: 1962-09-04
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Expires: 1980-12-19
Abstract
No abstract record available.
Inventors
- 👤 William A Compton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:30
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/24; F01D25/26; B; B64; B64C; B64C3/00; B64D; B64D13/00; B64D13/006; F01D25/08; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S62/00; Y10S62/05; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T428/00; Y10T428/12; Y10T428/1234; Y10T428/1241; Y10T428/12417; Y10T428/12493; Y10T428/12736; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972; Y10T428/24; Y10T428/24628; Y10T428/24661
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |