US3035761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blowers
Assignee: Lau Blower Co
•
Filing: 1959-02-24
•
Granted: 1962-05-22
•
Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Donald D Kinsworthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:55
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/4206; F04D29/4226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2011421A
Cited
US2331958A
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US2464473A
Cited
US2553172A
Cited
US2620127A
Cited
US2697163A
Cited
US2755015A
Cited
US2862657A
Cited
US2810514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |