US737336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping apparatus.
Assignee: OSCAR CHARLES HERRENKIND
•
Filing: 1902-09-19
•
Granted: 1903-08-25
•
Expires: 1922-09-19
Abstract
No abstract record available.
Inventors
- 👤 Francis Charles Cain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:23
CPC Classifications
F; F04; F04F; F04F1/00; F04F1/06
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) | 1906-08-24 | 1907-02-23 | 1907-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-08-24 | 1911-02-23 | 1911-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-08-24 | 1915-02-23 | 1915-08-25 | $7700.00 | Window Closed / Lapsed |