US3040659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well perforating device
Assignee: Individual
•
Filing: 1958-05-12
•
Granted: 1962-06-26
•
Expires: 1978-05-12
Abstract
No abstract record available.
Inventors
- 👤 Otis J Mcculleugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:39
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; E21B43/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2169671A
Cited
US2708408A
Cited
US2785631A
Cited
US2761383A
Cited
US2766690A
Cited
US2811921A
Cited
US2799224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |