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Patent US2948630A successfully refreshed from Google Patents.
US2948630A
Expired / Lapsed
US
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Method for burning clay slate or clay
Assignee: Individual
•
Filing: 1956-11-05
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Granted: 1960-08-09
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Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Holm Aarry Alfred Reinhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:37
CPC Classifications
C; C04; C04B; C04B7/00; C04B7/36; C04B7/43; C04B11/00; C04B11/02; C04B11/028; C04B2/00; C04B2/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2163513A
Cited
US346358A
Cited
US849873A
Cited
US939936A
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US1021509A
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US1747740A
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US1982918A
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US2029524A
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GB421973A
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US2230831A
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US2521591A
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US2650171A
Cited
US2721805A
Cited
US2782019A
Cited
US2786772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |