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US2960926A
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Assignee: Mckee Dev Corp
•
Filing: 1957-10-02
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Granted: 1960-11-22
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Expires: 1977-10-02
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:06
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/26; B30B9/267; B30B9/12; B30B9/128; D; D21; D21C; D21C9/00; D21C9/02; D21C9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1245950A
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US1876064A
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FR634303A
Cited
FR703870A
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US2118992A
Cited
US2730242A
Cited
US2709957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |