US2192374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable envelope fastener
Assignee: QUALITY PARK ENVELOPE CO
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Filing: 1937-10-04
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Granted: 1940-03-05
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Expires: 1957-10-04
Abstract
No abstract record available.
Inventors
- 👤 Fritz William Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:41
CPC Classifications
B; B42; B42F; B42F7/00; B42F7/02; B42P; B42P2241/00; B42P2241/02; Y; Y10; Y10S; Y10S292/00; Y10S292/50; Y10T; Y10T24/00; Y10T24/21; Y10T24/2102; Y10T24/214; Y10T24/45; Y10T24/45225; Y10T24/4588; Y10T24/45901; Y10T24/45969; Y10T24/45974; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1091; Y10T292/31; Y10T292/323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-03-05 | 1943-09-04 | 1944-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-05 | 1947-09-04 | 1948-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-05 | 1951-09-04 | 1952-03-05 | $7700.00 | Window Closed / Lapsed |