US2452514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper clip
Assignee: Individual
•
Filing: 1946-04-17
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Granted: 1948-10-26
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Expires: 1966-04-17
Abstract
No abstract record available.
Inventors
- 👤 Lech W S Zychlinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:17
CPC Classifications
B; B42; B42F; B42F1/00; B42F1/02; B42F1/04; B42F1/08; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/205; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44778; Y10T24/44786
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |