US2750884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting of underground formations
Assignee: Texaco Inc
•
Filing: 1951-10-16
•
Granted: 1956-06-19
•
Expires: 1971-10-16
Abstract
No abstract record available.
Inventors
- 👤 Gaines Tom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:57
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; E21B43/117; F; F42; F42B; F42B3/00; F42B3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
AN APPARATUS USEFUL FOR SHOOTING A WELL COMPRISING AN ELONGATED SUPPORT MEMBER PROVIDED WITH A PLURALITY OF SPACED APART OPENINGS FORMED IN SAID MEMBER, SAID OPENINGS BEING ADAPTED TO RECEIVE A CHARGE OF HIGH EX-
Claim 2
Independent Claim
35 words
AN APPARATUS USEFUL FOR SHOOTING A WELL COMPRISING AN ELONGATED SUPPORT MEMBER PROVIDED WITH A PLURALITY OF SPACED APART OPENINGS FORMED IN SAID MEMBER, SAID OPENINGS BEING ADAPTED TO RECEIVE A CHARGE OF HIGH EX-
References Cited (Backward Citations)
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Cited
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Cited
US2414349A
Cited
US2543814A
Cited
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Cited
US2619186A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |