Patent US2304793A successfully refreshed from Google Patents.
US2304793A
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Method of and apparatus for cutting pipe
Assignee: CALPAT CORP
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Filing: 1941-06-09
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Granted: 1942-12-15
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Expires: 1961-06-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert G Bodine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
E; E21; E21B; E21B31/00; E21B31/005; E21B29/00; E21B43/00; E21B43/11; E21B43/112; Y; Y10; Y10S; Y10S366/00; Y10S366/60; Y10T; Y10T29/00; Y10T29/49; Y10T29/49815; Y10T29/49821; Y10T29/49995; Y10T74/00; Y10T74/18; Y10T74/18992
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-12-14 | 1946-06-15 | 1946-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-14 | 1950-06-15 | 1950-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-14 | 1954-06-15 | 1954-12-15 | $7700.00 | Window Closed / Lapsed |