Patent US4077708A successfully refreshed from Google Patents.
Patent US2321378A successfully refreshed from Google Patents.
US2321378A
Expired / Lapsed
US
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Combination screw and rivet
Assignee: Individual
•
Filing: 1942-02-03
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Granted: 1943-06-08
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Expires: 1962-02-03
Abstract
No abstract record available.
Inventors
- 👤 Emmet M Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:53
CPC Classifications
F; F16; F16B; F16B25/00; F16B25/0036; F16B25/0042; F16B25/0068; F16B19/00; F16B19/04; F16B19/06; F16B25/001; F16B25/0021; F16B25/0047; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/938
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) | 1946-06-07 | 1946-12-07 | 1947-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-07 | 1950-12-07 | 1951-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-07 | 1954-12-07 | 1955-06-08 | $7700.00 | Window Closed / Lapsed |