US2950859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan housing and protective grill
Assignee: MEIER ELECTRIC AND MACHINE COM
•
Filing: 1956-12-03
•
Granted: 1960-08-30
•
Expires: 1976-12-03
Abstract
No abstract record available.
Inventors
- 👤 Harold L Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:43
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/522; F04D29/526; F04D29/70; F04D29/701; F04D29/703
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1994914A
Cited
US2182690A
Cited
US2154313A
Cited
US2307586A
Cited
US2385152A
Cited
US2487294A
Cited
US2650020A
Cited
US2633293A
Cited
US2640646A
Cited
US2598763A
Cited
US2544281A
Cited
US2709035A
Cited
US2628019A
Cited
US2728541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |