US2477797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear pump with wear compensating means
Assignee: NELLIE M GOTTSCHALT
•
Filing: 1945-08-06
•
Granted: 1949-08-02
•
Expires: 1965-08-06
Abstract
No abstract record available.
Inventors
- 👤 Girz Adolph
- 👤 William M Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:53
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/082; F04C2/086; F04C15/00; F04C15/0003; F04C15/0023; F04C2250/00; F04C2250/20; F04C2250/201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |