Patent US1577531A successfully refreshed from Google Patents.
US1577531A
Expired / Lapsed
US
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Method of enameling pipes
Assignee: Stone J and Co Ltd
•
Filing: 1925-05-29
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Granted: 1926-03-23
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Expires: 1945-05-29
Abstract
No abstract record available.
Inventors
- 👤 Lambert Wesley
- 👤 Mead Albert Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:50
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/22; C; C23; C23D; C23D5/00; C23D5/005; Y; Y10; Y10S; Y10S118/00; Y10S118/10
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) | 1929-03-22 | 1929-09-21 | 1930-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-03-22 | 1933-09-21 | 1934-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-03-22 | 1937-09-21 | 1938-03-23 | $7700.00 | Window Closed / Lapsed |