US3455442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: ROBERT L BUIST
•
Filing: 1967-02-13
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Granted: 1969-07-15
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Expires: 1987-02-13
Abstract
No abstract record available.
Inventors
- 👤 Robert L Buist
- 👤 Ronald D Bos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:53
CPC Classifications
B; B07; B07B; B07B13/00; G; G06; G06M; G06M7/00; Y; Y10; Y10S; Y10S209/00; Y10S209/933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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CA670279A
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US1872903A
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US1872889A
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US3107788A
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US3237764A
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US3368674A
Cited
US3329251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |