Patent US2952484A successfully refreshed from Google Patents.
US2952484A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1959-05-11
•
Granted: 1960-09-13
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Expires: 1979-05-11
Abstract
No abstract record available.
Inventors
- 👤 Zoltok Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:39
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/02; E04H12/08; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/557
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |