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US3280820A
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US
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Assignee: Individual
•
Filing: 1964-02-11
•
Granted: 1966-10-25
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Expires: 1984-02-11
Abstract
No abstract record available.
Inventors
- 👤 Robert H Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:40
CPC Classifications
B; B42; B42F; B42F17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1118184A
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US1875382A
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US2732875A
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US1119768A
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GB212027A
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US1667972A
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US2354769A
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US2477886A
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US2888932A
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GB878982A
Cited
US2871153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |