Patent US2532704A successfully refreshed from Google Patents.
US2532704A
Expired / Lapsed
US
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Staple pin attaching means
Assignee: CHEWNING
•
Filing: 1947-11-04
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Granted: 1950-12-05
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Expires: 1967-11-04
Abstract
No abstract record available.
Inventors
- 👤 Jay B Frazelle
- 👤 Wallace D Chewning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:57
CPC Classifications
A; A47; A47G; A47G27/00; A47G27/04; A47G27/0406; A47G27/0418; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3467; Y10T24/3468; Y10T24/3469; Y10T24/46; Y10T24/468; Y10T24/4682; Y10T24/4686
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) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |