Patent US2842824A successfully refreshed from Google Patents.
US2842824A
Expired / Lapsed
US
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Separable fastener with dual size center ledge scoops
Assignee: Individual
•
Filing: 1955-04-20
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Granted: 1958-07-15
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Expires: 1975-04-20
Abstract
No abstract record available.
Inventors
- 👤 Louis H Morin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:01
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/02; A44B19/04; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2539; Y10T24/2545; Y10T24/2561; Y10T24/2598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1746237A
Cited
US1817837A
Cited
CH157318A
Cited
US2030895A
Cited
US2192013A
Cited
US2496926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |