Patent US1874892A successfully refreshed from Google Patents.
US1874892A
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Assignee: Henry Lederer & Bro Inc
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Filing: 1929-05-10
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Granted: 1932-08-30
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Expires: 1949-05-10
Abstract
No abstract record available.
Inventors
- 👤 William J Butler
- 👤 John J Flynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:42
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/02; F23Q2/04; F23Q2/06; F23Q2/08
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) | 1935-08-30 | 1936-02-29 | 1936-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-30 | 1940-02-29 | 1940-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-30 | 1944-02-29 | 1944-08-30 | $7700.00 | Window Closed / Lapsed |