US2600477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proportioning pump
Assignee: Procter and Gamble Co
•
Filing: 1947-08-21
•
Granted: 1952-06-17
•
Expires: 1967-08-21
Abstract
No abstract record available.
Inventors
- 👤 Robert V Burt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:35
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/18; F04C14/185; F04C2/00; F04C2/08; F04C2/10; F04C2/101; G; G01; G01F; G01F3/00; G01F3/02; G01F3/04; G01F3/06; G01F3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1602740A
Cited
US1604802A
Cited
US1742215A
Cited
US2052419A
Cited
US2157284A
Cited
US2293126A
Cited
US2406965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |