US2468355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filing device
Assignee: Individual
•
Filing: 1945-11-30
•
Granted: 1949-04-26
•
Expires: 1965-11-30
Abstract
No abstract record available.
Inventors
- 👤 Richard J Ambler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:40
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/02; Y; Y10; Y10T; Y10T24/00; Y10T24/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE143268C
Cited
US210439A
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US1053670A
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DE365538C
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US646638A
Cited
US1665703A
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US1829613A
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GB367483A
Cited
US2025495A
Cited
GB434525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |