US3311065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping apparatus
Assignee: PLASTERING DEV CT Inc
•
Filing: 1964-10-15
•
Granted: 1967-03-28
•
Expires: 1984-10-15
Abstract
No abstract record available.
Inventors
- 👤 Robert E Hager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:16
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18176; Y10T74/18182
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3125961A
Cited
US1352637A
Cited
US1327272A
Cited
US2390798A
Cited
US2448104A
Cited
US2640425A
Cited
US2841991A
Cited
US2980023A
Cited
US3077204A
Cited
US3142185A
Cited
US2972894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |