Patent US2772404A successfully refreshed from Google Patents.
US2772404A
Expired / Lapsed
US
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Terminal
Assignee: DUMORE CO
•
Filing: 1952-10-24
•
Granted: 1956-11-27
•
Expires: 1972-10-24
Abstract
No abstract record available.
Inventors
- 👤 Samuel E Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:02
CPC Classifications
H; H01; H01R; H01R11/00; H01R11/11; H01R11/22; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/149
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA504922A
Cited
GB190210074A
Cited
FR434825A
Cited
US1606506A
Cited
US1557111A
Cited
GB242391A
Cited
US1865207A
Cited
US2454230A
Cited
US2602105A
Cited
DE835164C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |