Patent US4865067A successfully refreshed from Google Patents.
Patent US1326730A successfully refreshed from Google Patents.
US1326730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaetless propeller
Assignee: —
•
Filing: —
•
Granted: 1919-12-30
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Expires: 1936-12-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:47
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/08; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/16; B63H2001/165; B63H2011/008; B63H2011/081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1922-12-29 | 1923-06-30 | 1923-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-12-29 | 1927-06-30 | 1927-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-12-29 | 1931-06-30 | 1931-12-30 | $7700.00 | Window Closed / Lapsed |