Patent US1302760A successfully refreshed from Google Patents.
US3528433A
Expired / Lapsed
US
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Smoking product having microreticulated filter
Assignee: Philip Morris USA Inc
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Filing: 1968-03-21
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Granted: 1970-09-15
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Expires: 1988-03-21
Abstract
No abstract record available.
Inventors
- 👤 William R Johnson
- 👤 Jerome S Osmalov
- 👤 Richard N Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:06
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |