US2930327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspending device for a submersible pump
Assignee: Individual
•
Filing: 1957-12-23
•
Granted: 1960-03-29
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Donald T Linkous
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:08
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/10; E; E21; E21B; E21B23/00; E21B23/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US644633A
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US659953A
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US767782A
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US1786111A
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US1875357A
Cited
US1980985A
Cited
US1941813A
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DE597249C
Cited
US2569457A
Cited
US2595008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |