US2474639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flint dispenser
Assignee: Individual
•
Filing: 1947-08-01
•
Granted: 1949-06-28
•
Expires: 1967-08-01
Abstract
No abstract record available.
Inventors
- 👤 Shprentz Isidore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:07
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/34; F23Q2/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR763229A
Cited
US2129879A
Cited
US2194009A
Cited
FR846206A
Cited
US2236224A
Cited
US2258866A
Cited
US2408150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |