Patent US1428876A successfully refreshed from Google Patents.
US1428876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump of variable capacity
Assignee: Individual
•
Filing: 1921-11-05
•
Granted: 1922-09-12
•
Expires: 1941-11-05
Abstract
No abstract record available.
Inventors
- 👤 Bollinckx Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:27
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/22; F04B1/122; F04B1/124; F04B1/26; F04B1/30; F04B1/32; F04B1/324
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1925-09-11 | 1926-03-13 | 1926-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-09-11 | 1930-03-13 | 1930-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-09-11 | 1934-03-13 | 1934-09-12 | $7700.00 | Window Closed / Lapsed |