US2933137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic well screen and wells utilizing the screens and method of operation
Assignee: RANNEY METHOD WATER SUPPLIES I
•
Filing: 1958-03-05
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Granted: 1960-04-19
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Expires: 1978-03-05
Abstract
No abstract record available.
Inventors
- 👤 Audiffret Adolphe A D
- 👤 Robert E Reimund
- 👤 William C Lavely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:46
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/08; E21B43/086; E03; E03B; E03B3/00; E03B3/06; E03B3/08; E03B3/15; E03B3/16; E03B3/18; E03B3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2092042A
Cited
US2026419A
Cited
US2205421A
Cited
US2094479A
Cited
US2352832A
Cited
US2355259A
Cited
US2809699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |