US3020863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Industrial apparatus, method, and product
Assignee: James Lees and Sons Co
•
Filing: 1957-01-17
•
Granted: 1962-02-13
•
Expires: 1977-01-17
Abstract
No abstract record available.
Inventors
- 👤 John E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/26; D05C15/32; D05C15/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190206792A
Cited
US2042503A
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GB635817A
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US2578242A
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US2696181A
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US2875714A
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US2784688A
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US2884881A
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US2810471A
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US2782741A
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US2862465A
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US2882845A
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US2818037A
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US2879728A
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US2804835A
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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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |