US2464228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating mechanism
Assignee: Individual
•
Filing: 1944-07-14
•
Granted: 1949-03-15
•
Expires: 1964-07-14
Abstract
No abstract record available.
Inventors
- 👤 Edwin S Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:57
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0002; F01B3/0005; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B75/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1307480A
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US1326689A
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US765814A
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US1209995A
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US1427632A
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US1413363A
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US1350260A
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US2000108A
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US2079050A
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US2216343A
Cited
US2316160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |