US2987322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support structure for dirigible wheel
Assignee: Individual
•
Filing: 1958-04-22
•
Granted: 1961-06-06
•
Expires: 1978-04-22
Abstract
No abstract record available.
Inventors
- 👤 J K Hutchens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:21
CPC Classifications
B; B62; B62D; B62D7/00; B62D7/18; B60; B60T; B60T1/00; B60T1/02; B60T1/06; B60T1/067; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/926; Y10S411/927; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32737; Y10T403/32778
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1471575A
Cited
US1438214A
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US2297182A
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US2817407A
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US2693587A
Cited
US2785907A
Cited
US2823055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |