Patent US2877022A successfully refreshed from Google Patents.
US2877022A
Expired / Lapsed
US
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Expansible arbor with segmental sleeves
Assignee: Individual
•
Filing: 1957-05-16
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Granted: 1959-03-10
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Expires: 1977-05-16
Abstract
No abstract record available.
Inventors
- 👤 John J Parker
- 👤 London T Morawski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:20
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/40; B23B31/4006; B23B31/4033; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1004; Y10T279/1008; Y10T279/1037; Y10T279/1041; Y10T279/1054; Y10T279/17; Y10T279/17411; Y10T279/17461
Claims Analysis
Total Claims: 0
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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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |