Patent US2678189A successfully refreshed from Google Patents.
US2678189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Staple puller
Assignee: Individual
•
Filing: 1952-07-10
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Granted: 1954-05-11
•
Expires: 1972-07-10
Abstract
No abstract record available.
Inventors
- 👤 Malcolm C Shelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:59
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/16; B01D3/22; B25; B25C; B25C11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE169987C
Cited
US1324557A
Cited
US1160568A
Cited
US1463645A
Cited
US1989918A
Cited
US2400988A
Cited
US2618184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |