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US2504866A
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Assignee: Individual
•
Filing: 1946-05-09
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Granted: 1950-04-18
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Expires: 1966-05-09
Abstract
No abstract record available.
Inventors
- 👤 John F Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:26
CPC Classifications
B; B63; B63B; B63B45/00; B63B45/02; F; F21; F21V; F21V21/00; F21V21/14; F21V21/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US243780A
Cited
US416850A
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USRE15607E
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US1125824A
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US1703224A
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GB260025A
Cited
US1779180A
Cited
US1776004A
Cited
US2128461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |