Patent US2728253A successfully refreshed from Google Patents.
US2728253A
Expired / Lapsed
US
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Automatic control system for pipe machining apparatus and the like
Assignee: Individual
•
Filing: 1952-04-03
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Granted: 1955-12-27
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Expires: 1972-04-03
Abstract
No abstract record available.
Inventors
- 👤 Martin S Gettig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:04
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/006; Y; Y10; Y10S; Y10S470/00; Y10S470/901; Y10T; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/173; Y10T408/52; Y10T408/54; Y10T82/00; Y10T82/25; Y10T82/2514
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1285584A
Cited
US1419936A
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US1967153A
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US2210531A
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US2360906A
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US2359167A
Cited
US2405141A
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US2519837A
Cited
US2690572A
Cited
US2620875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |