US2906414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draft rigging
Assignee: Symington Wayne Corp
•
Filing: 1954-08-20
•
Granted: 1959-09-29
•
Expires: 1974-08-20
Abstract
No abstract record available.
Inventors
- 👤 Glenn F Couch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:37
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1904293A
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US2197030A
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US2345652A
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US2330706A
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US2425364A
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US2398083A
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US2576214A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |