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US2452173A
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Assignee: Patent Button Co
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Filing: 1946-07-19
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Granted: 1948-10-26
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Expires: 1966-07-19
Abstract
No abstract record available.
Inventors
- 👤 William A Zwiebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:42
CPC Classifications
A; A44; A44B; A44B1/00; A44B1/18; A44B1/28; A44B1/30; Y; Y10; Y10S; Y10S411/00; Y10S411/918; Y10T; Y10T24/00; Y10T24/36; Y10T24/3683
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 |