Patent US2641254A successfully refreshed from Google Patents.
US2641254A
Expired / Lapsed
US
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Applicator
Assignee: Individual
•
Filing: 1948-10-18
•
Granted: 1953-06-09
•
Expires: 1968-10-18
Abstract
No abstract record available.
Inventors
- 👤 Frank E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:40
CPC Classifications
A; A61; A61M; A61M15/00; A61M2202/00; A61M2202/06; A61M2202/064; A61M2205/00; A61M2205/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE595416C
Cited
US1818028A
Cited
US2123353A
Cited
US2310681A
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US2340142A
Cited
US2470297A
Cited
US2469034A
Cited
US2470296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |