US2867276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained perforating implement
Assignee: WALES STRIPPITE CORP
•
Filing: 1955-04-14
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Granted: 1959-01-06
•
Expires: 1975-04-14
Abstract
No abstract record available.
Inventors
- 👤 Paul H Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:00
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/34; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2135; Y10T83/215; Y10T83/2155; Y10T83/2157; Y10T83/2159; Y10T83/869; Y10T83/8776; Y10T83/8785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2117264A
Cited
US2334011A
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US2427409A
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US2650663A
Cited
US2702703A
Cited
US2597976A
Cited
US2708970A
Cited
US2649157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |