US2053490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope fastener and method of making and applying the same
Assignee: FL Smithe Machine Co Inc
•
Filing: 1933-06-15
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Granted: 1936-09-08
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Expires: 1953-06-15
Abstract
No abstract record available.
Inventors
- 👤 Novick Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:23
CPC Classifications
B; B31; B31B; B31B50/00; B31B70/00; B31B70/74; B31B70/81; B31B70/813; B31B70/8131; B31B50/74; B31B50/81; B31B50/814; B31B50/8142; Y; Y10; Y10T; Y10T24/00; Y10T24/49; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49835; Y10T29/49837; Y10T29/49908; Y10T29/49915; Y10T29/4992; Y10T29/49938; Y10T29/49943; Y10T29/49947; Y10T29/49954; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12236; Y10T428/1225; Y10T428/12264; Y10T428/12361; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2122
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) | 1939-09-08 | 1940-03-09 | 1940-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-08 | 1944-03-09 | 1944-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-08 | 1948-03-09 | 1948-09-08 | $7700.00 | Window Closed / Lapsed |