Patent US2883738A successfully refreshed from Google Patents.
US2883738A
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Method of making annular elements for power-transmission chains
Assignee: Diamond Chain Co Inc
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Filing: 1955-03-09
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Granted: 1959-04-28
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Expires: 1975-03-09
Abstract
No abstract record available.
Inventors
- 👤 Harry E Morrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:44
CPC Classifications
B; B24; B24B; B24B39/00; B24B39/02; B21; B21L; B21L9/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49671
Claims Analysis
Total Claims: 0
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US1910221A
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US2213302A
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US2778094A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |