Patent US3407995A successfully refreshed from Google Patents.
US3407995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blower assembly
Assignee: Lau Blower Co
•
Filing: 1966-10-12
•
Granted: 1968-10-29
•
Expires: 1986-10-12
Abstract
No abstract record available.
Inventors
- 👤 Donald D Kinsworthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:21
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/441; F04D17/00; F04D17/08; F04D17/16; F04D17/161; F04D17/162; F04D29/4206; F04D29/4213; F04D29/4226; F04D29/424; F05; F05D; F05D2250/00; F05D2250/50; F05D2250/51; F05D2250/52
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US655602A
Cited
US820397A
Cited
US820398A
Cited
US820399A
Cited
US1118739A
Cited
US1543740A
Cited
US2452274A
Cited
US3246834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |