Patent US3485491A successfully refreshed from Google Patents.
US3485491A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1967-05-17
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Granted: 1969-12-23
•
Expires: 1987-05-17
Abstract
No abstract record available.
Inventors
- 👤 Henry John Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:15
CPC Classifications
D; D06; D06F; D06F89/00; Y; Y10; Y10S; Y10S493/00; Y10S493/937
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2821386A
Cited
US3134587A
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US3116059A
Cited
US3079143A
Cited
GB987743A
Cited
FR1358191A
Cited
FR1432525A
Cited
US3339914A
Cited
US3310207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |