US2868136A
Expired / Lapsed
US
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Assignee: MELBA L BENEDEK
•
Filing: 1954-05-13
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Granted: 1959-01-13
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Expires: 1974-05-13
Abstract
No abstract record available.
Inventors
- 👤 Melba L Benedek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:50
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/0404; F04B1/0413; F04B1/0408; F04B1/10; F04B1/107; F04B1/1071; F04B49/00; F04B49/22; F04B49/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1112158A
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US2130299A
Cited
US2293693A
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US2292181A
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GB594852A
Cited
US2646755A
Cited
US2743582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |