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US1668341A
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Assignee: Emhart Industries Inc
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Filing: 1927-09-17
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Granted: 1928-05-01
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Expires: 1947-09-17
Abstract
No abstract record available.
Inventors
- 👤 Shaw Duncan
- 👤 Wallace F Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:33
CPC Classifications
A; A62; A62C; A62C2/00; A62C2/06; A62C2/12; Y; Y10; Y10S; Y10S16/00; Y10S16/17
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) | 1931-05-01 | 1931-10-31 | 1932-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-01 | 1935-10-31 | 1936-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-01 | 1939-10-31 | 1940-05-01 | $7700.00 | Window Closed / Lapsed |