Patent US1452839A successfully refreshed from Google Patents.
US1452839A
Expired / Lapsed
US
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Bag-frame fastener
Assignee: R NEUMANN HARDWARE CO
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Filing: 1921-04-22
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Granted: 1923-04-24
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Expires: 1941-04-22
Abstract
No abstract record available.
Inventors
- 👤 William A Lotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:45
CPC Classifications
A; A45; A45C; A45C13/00; A45C13/04; A45C13/06; Y; Y10; Y10S; Y10S292/00; Y10S292/48; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0997; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1089
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) | 1926-04-23 | 1926-10-23 | 1927-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-04-23 | 1930-10-23 | 1931-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-04-23 | 1934-10-23 | 1935-04-24 | $7700.00 | Window Closed / Lapsed |