US2879675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual boring attachment
Assignee: Individual
•
Filing: 1957-05-28
•
Granted: 1959-03-31
•
Expires: 1977-05-28
Abstract
No abstract record available.
Inventors
- 👤 Myron J Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:20
CPC Classifications
B; B23; B23B; B23B39/00; B23B39/16; B23B39/161; B23B39/162; Y; Y10; Y10T; Y10T408/00; Y10T408/36; Y10T408/385; Y10T408/60; Y10T408/65; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19084; Y10T74/19642; Y10T74/19679
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US865249A
Cited
US1023021A
Cited
US1148094A
Cited
US1135595A
Cited
US1444343A
Cited
US2380314A
Cited
US2492391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |