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Patent US3204284A successfully refreshed from Google Patents.
US3204284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Threaded bushing insert
Assignee: Individual
•
Filing: 1963-10-31
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Granted: 1965-09-07
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Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Henry H Merriman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:01
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/12; F16B37/122
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A DRILL BUSHING INSERT COMPRISING, IN COMBINATION, (A) AN ANNULAR BODY HAVING AN EXTERIOR SURFACE, (B) A GUIDE BORE CONCENTRICALLY EXTENDING THROUGH SAID BODY HAVING A LONGITUDINAL AXIS,
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |