US2886876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for molding concrete building slabs
Assignee: JR MICROWAVE SYSTEMS Inc
•
Filing: 1956-03-07
•
Granted: 1959-05-19
•
Expires: 1976-03-07
Abstract
No abstract record available.
Inventors
- 👤 Wilson John Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:28
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0002; B28B7/0014; B28B7/0017; B28B7/0029; B28B7/40; B28B7/42; Y; Y10; Y10S; Y10S264/00; Y10S264/43; Y10S425/00; Y10S425/102; Y10S425/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US896330A
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US1207697A
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US1554586A
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US2101992A
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US2044786A
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US2240776A
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US2250020A
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US2188726A
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US2377480A
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US2306107A
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US2416559A
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US2594324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |