US3049735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming aid
Assignee: Gentex Corp
•
Filing: 1959-01-28
•
Granted: 1962-08-21
•
Expires: 1979-01-28
Abstract
No abstract record available.
Inventors
- 👤 Edgar G Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:00
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/13; B63C9/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1212315A
Cited
US832999A
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GB191514072A
Cited
US1236310A
Cited
GB114169A
Cited
US1367225A
Cited
US1341529A
Cited
US1492041A
Cited
FR787154A
Cited
FR888288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |