US3143676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing arrangement for canned pumps
Assignee: Allis Chalmers Corp
•
Filing: 1960-10-17
•
Granted: 1964-08-04
•
Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 Ignatius J Niemkiewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:33
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0606; F04D13/0613; H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2734459A
Cited
US2669667A
Cited
US2709965A
Cited
US2741990A
Cited
US2777963A
Cited
US2777462A
Cited
US2796835A
Cited
US2939399A
Cited
US2956188A
Cited
US2972308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |