US2929937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydro-motor
Assignee: Individual
•
Filing: 1958-11-18
•
Granted: 1960-03-22
•
Expires: 1978-11-18
Abstract
No abstract record available.
Inventors
- 👤 Kroger Rudolf William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:48
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/04; F03B13/00; F05; F05B; F05B2220/00; F05B2220/60; F05B2220/602; Y; Y02; Y02B; Y02B10/00; Y02B10/50; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1562556A
Cited
US1594826A
Cited
FR619269A
Cited
US2436683A
Cited
US2481222A
Cited
US2744465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |