Patent US2998800A successfully refreshed from Google Patents.
US2998800A
Expired / Lapsed
US
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Pipe coating apparatus
Assignee: TD Williamson Inc
•
Filing: 1958-11-04
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Granted: 1961-09-05
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Expires: 1978-11-04
Abstract
No abstract record available.
Inventors
- 👤 Vernooy Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:16
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/06; B05B13/0627; Y; Y10; Y10S; Y10S118/00; Y10S118/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2103134A
Cited
US2322228A
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US2399018A
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US2573815A
Cited
US2617134A
Cited
US2782370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |