US3319482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Worm and wheel gearing and housing therefor
Assignee: AL CRAFT Mfg CO
•
Filing: 1965-06-15
•
Granted: 1967-05-16
•
Expires: 1985-06-15
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Campbell
- 👤 Robert L Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:25
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/039; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/16; F16H2057/02039; F16H2057/02082; F16H2057/02086; F16H57/023; F16H2057/0235; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
A WINDOW OPERATOR COMPRISING A HOUSING INCLUDING A PAIR OF CLOSELY SIMILAR, HOLLOW DIE-CAST HOUSING PARTS FIXEDLY SECURED IN FACE-TO-FACE ENGAGEMENT WITH ONE ANOTHER AND PROVIDED WITH WORM GEAR BEARING MEANS AND WORM BEARING MEANS AT 90* TO ONE ANOTHER, A WORM GEAR JOURNALED IN SAID GEAR BEARING MEANS AND A WORM JOURNALED IN SAID WORM BEARING MEANS IN MESH WITH SAID WORM
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |