US2764117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle propelled by auger type rotors
Assignee: Individual
•
Filing: 1952-12-12
•
Granted: 1956-09-25
•
Expires: 1972-12-12
Abstract
No abstract record available.
Inventors
- 👤 Persia John L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:47
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0007; B60F3/0023; B63; B63B; B63B1/00; B63B1/02; B63B1/04; B63B1/042; B63B3/00; B63B3/14; B63B3/56; B63B3/58; B63H; B63H1/00; B63H1/02; B63H1/12; B63H2001/122; B63H2001/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US571628A
Cited
US600672A
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US669210A
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US722908A
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US903540A
Cited
US1216246A
Cited
US1289808A
Cited
US1646611A
Cited
US2376647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-25 | 1960-03-26 | 1960-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-25 | 1964-03-26 | 1964-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-25 | 1968-03-26 | 1968-09-25 | $7700.00 | Window Closed / Lapsed |