US2694534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision core for paper rolls
Assignee: Individual
•
Filing: 1952-02-26
•
Granted: 1954-11-16
•
Expires: 1972-02-26
Abstract
No abstract record available.
Inventors
- 👤 Sylverius E Stingle
- 👤 Clarence O Stingle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:46
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/10; B41; B41J; B41J15/00; B41J15/02; B65H75/18; B65H75/182; B65H75/50; B65H2701/00; B65H2701/50; B65H2701/51; B65H2701/512; B65H2701/5122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US786698A
Cited
US1159204A
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US1520379A
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FR618534A
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US1743446A
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DE475198C
Cited
US1977714A
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US2159385A
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US2264116A
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US2419415A
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US2397362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-15 | 1958-05-17 | 1958-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-15 | 1962-05-17 | 1962-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-15 | 1966-05-17 | 1966-11-16 | $7700.00 | Window Closed / Lapsed |