US2990792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial apparatus
Assignee: James Lees and Sons Co
•
Filing: 1958-03-12
•
Granted: 1961-07-04
•
Expires: 1978-03-12
Abstract
No abstract record available.
Inventors
- 👤 Henry F Nowicki
- 👤 Quinnell Frank
- 👤 John E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:49
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/26; D05C15/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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CA520373A
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US2796654A
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US2882845A
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US2879728A
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US2782905A
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US2879729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |