Patent US1830291A successfully refreshed from Google Patents.
US1830291A
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Assignee: KING Manufacturing CO
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Filing: 1928-11-30
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Granted: 1931-11-03
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Expires: 1948-11-30
Abstract
No abstract record available.
Inventors
- 👤 Ernest S Roe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:59
CPC Classifications
F; F41; F41B; F41B11/00; F41B11/60; F41B11/64; F41B11/642; F41B11/646; F41B11/647; F41B11/648
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) | 1934-11-02 | 1935-05-04 | 1935-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-02 | 1939-05-04 | 1939-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-02 | 1943-05-04 | 1943-11-03 | $7700.00 | Window Closed / Lapsed |