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US2607620A
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Assignee: GEN CEMENT Manufacturing CO
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Filing: 1948-03-10
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Granted: 1952-08-19
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Expires: 1968-03-10
Abstract
No abstract record available.
Inventors
- 👤 Anthony M Oliveri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:22
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US606736A
Cited
US977158A
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US1514814A
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US1457775A
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US2198976A
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US2303393A
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US2485040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |