Patent US2950536A successfully refreshed from Google Patents.
US2950536A
Expired / Lapsed
US
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Method and apparatus for angular measurement of pipe bends
Assignee: Individual
•
Filing: 1956-11-13
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Granted: 1960-08-30
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Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 Hellwig August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:11
CPC Classifications
G; G01; G01C; G01C1/00; B; B21; B21D; B21D7/00; B21D7/14
Claims Analysis
Total Claims: 0
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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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |