US3098401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill plate and methods of making a drill plate
Assignee: AT&T Inc
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Filing: 1961-05-24
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Granted: 1963-07-23
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Expires: 1981-05-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Marvin M Breeze
- 👤 Jr John O Etchison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:12
CPC Classifications
B; B23; B23B; B23B49/00; B23B49/02; Y; Y10; Y10T; Y10T408/00; Y10T408/55
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
47 words
A DRILL PLATE HAVING TOOL QUITE HOLES COMPRISING A BODY COMPOSED OF A RESIN WITH CHIPS OF METAL SUSPENDED IN THE RESIN AND CONCENTRATED IN THE WALLS OF SAID HOLES TO PRODUCE TOOL ENGAGING WALLS AND HAVING CAVITIES IN SAID TOOL ENGAGING WALLS ABOUT SAID METAL CHIPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |