US3438155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for abrading-to-value electrical components
Assignee: AT&T Inc
•
Filing: 1965-07-09
•
Granted: 1969-04-15
•
Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 Francis L Bouvier
- 👤 Roy C Carlson Jr
- 👤 Charles W Higgins
- 👤 John J Kelley
- 👤 Norman F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:17
CPC Classifications
B; B24; B24B; B24B49/00; B24B19/00; B24B19/02; B24B19/022; B24B19/024; B24B21/00; B24B21/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US993981A
Cited
DE606181C
Cited
US2968201A
Cited
US2884746A
Cited
US3073074A
Cited
US3138065A
Cited
US3264787A
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 |