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US3218260A
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Assignee: Bonewitz Chemicals Inc
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Filing: 1960-06-15
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Granted: 1965-11-16
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Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Lewandowski Thaddeus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:22
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2086; C11D1/00; C11D1/66; C11D1/83; C11D3/0005; C11D3/0047; C11D1/02; C11D1/12; C11D1/22; C11D1/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2901434A
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US2424049A
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US2338689A
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US2585127A
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US2629696A
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US3029193A
Cited
US2878188A
Cited
US2977315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |