US3438351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for simultaneously indicating the spacing between two opposed attritioning elements and their condition of wear
Assignee: Voith Morden Inc
•
Filing: 1966-09-02
•
Granted: 1969-04-15
•
Expires: 1986-09-02
Abstract
No abstract record available.
Inventors
- 👤 Robert B Kirkwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:41
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/14; D; D21; D21D; D21D1/00; D21D1/20; D21D1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2032584A
Cited
US2068071A
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US2743874A
Cited
US2854894A
Cited
US2931586A
Cited
US3212721A
Cited
US3327952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |