Patent US3335526A successfully refreshed from Google Patents.
US3335526A
Expired / Lapsed
US
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Pipe scarfing tool
Assignee: Raymond Kaiser Engineers Inc
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Filing: 1965-01-21
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Granted: 1967-08-15
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Expires: 1985-01-21
Abstract
No abstract record available.
Inventors
- 👤 Charles P Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:36
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23B5/167; B23B5/168; B24; B24B; B24B9/00; B24B9/007; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/54; B29C70/545; B29L; B29L2023/00; B29L2023/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |