Patent US2710232A successfully refreshed from Google Patents.
US2710232A
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US
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Method for filling cavities with granular solids
Assignee: Individual
•
Filing: 1950-06-14
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Granted: 1955-06-07
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Expires: 1970-06-14
Abstract
No abstract record available.
Inventors
- 👤 Lawrence D Schmidt
- 👤 John H Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:07
CPC Classifications
E; E01; E01B; E01B27/00; E01B27/12; E01B27/13; E01B27/16; E01B27/18; E02; E02D; E02D3/00; E02D3/12; E21; E21F; E21F15/00; E21F15/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2274708A
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US2304827A
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US2481051A
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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) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |