Patent US2977246A successfully refreshed from Google Patents.
Patent US2373638A successfully refreshed from Google Patents.
US2373638A
Expired / Lapsed
US
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Pipe coating apparatus
Assignee: CENTRILINE Corp
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Filing: 1942-05-06
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Granted: 1945-04-10
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Expires: 1962-05-06
Abstract
No abstract record available.
Inventors
- 👤 Albert G Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:25
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B13/00; B05B13/02; B05B13/0221; B05B13/0228; B05B13/06; B05B13/0645; B05B13/0663; B28; B28B; B28B19/00; B28B19/0038; Y; Y10; Y10S; Y10S118/00; Y10S118/10; Y10S118/11; Y10S118/16
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) | 1948-04-09 | 1948-10-09 | 1949-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-09 | 1952-10-09 | 1953-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-09 | 1956-10-09 | 1957-04-10 | $7700.00 | Window Closed / Lapsed |