US3473502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sailboat
Assignee: JOEL M WITTKAMP
•
Filing: 1968-06-18
•
Granted: 1969-10-21
•
Expires: 1988-06-18
Abstract
No abstract record available.
Inventors
- 👤 Joel M Wittkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:14
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/12; B63B1/121; B63B35/00; B63B35/34; B63B7/00; B63B7/06; B63B7/08; B63B7/085; B63H; B63H9/00; B63H9/04; B63B3/00; B63B3/02; B63B3/08; B63B2003/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3273528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |