Patent US2356553A successfully refreshed from Google Patents.
US2260306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Sullivan Machinery Co
•
Filing: 1938-04-16
•
Granted: 1941-10-28
•
Expires: 1958-04-16
Abstract
No abstract record available.
Inventors
- 👤 Alexander D Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:43
CPC Classifications
F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B43/02; F04B43/06; F04B43/073; F04B43/0736; F04B53/00; F04B53/06; F04B53/10; F04B53/102; F04B53/1022; F04B53/1025; F04B53/1087
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) | 1944-10-27 | 1945-04-28 | 1945-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-27 | 1949-04-28 | 1949-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-27 | 1953-04-28 | 1953-10-28 | $7700.00 | Window Closed / Lapsed |