US1573613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of spacing cores
Assignee: Cameron Machine Co
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Filing: 1923-05-02
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Granted: 1926-02-16
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Expires: 1943-05-02
Abstract
No abstract record available.
Inventors
- 👤 Johnstone Robert Mcc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:30
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/22; B65H19/30; B65H19/305; B26; B26D; B26D3/00; B26D3/16; B26D3/161; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/4148; B65H2301/4149; B65H2301/41493; Y; Y10; Y10T; Y10T82/00; Y10T82/16; Y10T82/16016; Y10T82/16426; Y10T82/16655; Y10T82/16704; Y10T82/16786
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-02-15 | 1929-08-17 | 1930-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-15 | 1933-08-17 | 1934-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-15 | 1937-08-17 | 1938-02-16 | $7700.00 | Window Closed / Lapsed |