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Patent US2886876A successfully refreshed from Google Patents.
US2886876A
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Apparatus for molding concrete building slabs
Assignee: JR MICROWAVE SYSTEMS Inc
•
Filing: 1956-03-07
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Granted: 1959-05-19
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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 08:17
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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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 |