Patent US3516885A successfully refreshed from Google Patents.
US3516885A
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US
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Method of making a bonded filter rod for smoking articles
Assignee: Brown and Williamson Holdings Inc
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Filing: 1968-04-10
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Granted: 1970-06-23
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Expires: 1988-04-10
Abstract
No abstract record available.
Inventors
- 👤 John H Sexstone
- 👤 George H Hilgartner Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:54
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0229; A24D3/0241; A24D3/06; A24D3/16; A24D3/163; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/101; Y10T156/1013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3039908A
Cited
US3079930A
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US3403202A
Cited
US3318317A
Cited
US3217715A
Cited
US3320110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |