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Patent US2500629A successfully refreshed from Google Patents.
US2500629A
Expired / Lapsed
US
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Shingling and rock lathing tool
Assignee: Individual
•
Filing: 1947-01-03
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Granted: 1950-03-14
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Expires: 1967-01-03
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Crookston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:28
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/26; B25; B25D; B25D1/00; B26; B26B; B26B23/00; E; E04; E04D; E04D15/00; E04D15/02
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) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |