Patent US3597222A successfully refreshed from Google Patents.
US3597222A
Expired / Lapsed
US
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Infusion packet
Assignee: Individual
•
Filing: 1968-03-22
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Granted: 1971-08-03
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Expires: 1988-03-22
Abstract
Abstract AN INFUSION PACKET HAVING TWO OPPOSITELY DISPOSED, RIGIDLY SEPARATED POCKETS OF TEA OR THE LIKE JOINED TOGETHER BY TWO TAPERING END PORTIONS WHICH FORM A NARROW, TRIANGULAR SHAPED POROUS CUP.
Inventors
- 👤 Thaddeus John Kalemba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:54
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/70; B65D85/804; B65D85/808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |