US3029910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite structural unit
Assignee: General Dynamics Corp
•
Filing: 1958-11-07
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Granted: 1962-04-17
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Expires: 1978-11-07
Abstract
No abstract record available.
Inventors
- 👤 Donald R Kirk
- 👤 John M Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:32
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/06; B64C1/12; B64C2001/0054; B64C2001/0072; B64C2001/0081; Y; Y02; Y02T; Y02T50/00; Y02T50/40; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/1234; Y10T428/12347; Y10T428/12389; Y10T428/12396; Y10T428/1241; Y10T428/12417; Y10T428/12486; Y10T428/12493; Y10T428/12736; Y10T428/12764
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |