US2862545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injector
Assignee: United Carbon Co Inc
•
Filing: 1954-03-29
•
Granted: 1958-12-02
•
Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Carl W Snow
- 👤 Arthur L Sweigart
- 👤 George H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:07
CPC Classifications
F; F23; F23D; F23D99/00; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/50; F23D99/002; F23D99/004; F23D2206/00; F23D2206/0015; F23D2900/00; F23D2900/21; F23D2900/21007
Claims Analysis
Total Claims: 0
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US2458542A
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US2553199A
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US2625466A
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US2682450A
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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) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |