Patent US1549830A successfully refreshed from Google Patents.
US1549830A
Expired / Lapsed
US
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Apparatus for and method of enameling ware
Assignee: Individual
•
Filing: 1923-08-06
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Granted: 1925-08-18
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Expires: 1943-08-06
Abstract
No abstract record available.
Inventors
- 👤 Carl A Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:14
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/18; F27D1/1858; F27B; F27B17/00; F27B17/0016; F27D1/0003; F27D1/0006; F27D1/0009; F27D2001/0059; F27D2001/0069; F27D2001/0073
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) | 1928-08-17 | 1929-02-16 | 1929-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-17 | 1933-02-16 | 1933-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-17 | 1937-02-16 | 1937-08-18 | $7700.00 | Window Closed / Lapsed |