US3498481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Daybrook Ottawa Corp
•
Filing: 1967-06-08
•
Granted: 1970-03-03
•
Expires: 1987-06-08
Abstract
No abstract record available.
Inventors
- 👤 Harrie Arthur Size
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:59
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/44; B60P1/4414; B60P1/445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2391813A
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US2527818A
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US2725152A
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US2989196A
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US3065869A
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US3258140A
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US3269567A
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US3305112A
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US3369678A
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US3369679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |