Patent US2482913A successfully refreshed from Google Patents.
US2482913A
Expired / Lapsed
US
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Pipe perforator
Assignee: Individual
•
Filing: 1945-03-12
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Granted: 1949-09-27
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Expires: 1965-03-12
Abstract
No abstract record available.
Inventors
- 👤 John R Jobe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:26
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/11; E21B43/112
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2125487A
Cited
US2210125A
Cited
US2212044A
Cited
US2328782A
Cited
US2355513A
Cited
US2426106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |