US3021535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swing-over windshield for motorboats
Assignee: Textron Inc
•
Filing: 1959-12-07
•
Granted: 1962-02-20
•
Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Richard W Dorst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:59
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1559352A
Cited
US1788436A
Cited
US1806366A
Cited
US2125023A
Cited
GB623891A
Cited
US2731220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |