US3526017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doctor system suction apparatus
Assignee: Bird Machine Co Inc
•
Filing: 1966-11-14
•
Granted: 1970-09-01
•
Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 William Kleimola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:17
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/60; D01H5/66; D21; D21G; D21G3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3183541A
Cited
US3264673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |