Patent US3006764A successfully refreshed from Google Patents.
US3006764A
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US
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Tea bag
Assignee: Duncan Coffee Co
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Filing: 1959-02-17
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Granted: 1961-10-31
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Expires: 1979-02-17
Abstract
No abstract record available.
Inventors
- 👤 Clay W Stephenson
- 👤 Norman D Van Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:23
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/70; B65D85/804; B65D85/808; D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/09; D21H21/00; D21H21/14; D21H23/00; D21H23/02; D21H23/22; D21H23/32; D21H23/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A TEA BAG COMPRISING A SEALED PAPER BAG CONTAINING TEA, SAID PAPER BEING WATER PERVIOUS AND BEING IMPREGNATED WITH A MIXTURE CONSISTING ESSENTIALLY OF SODIUM CYCLAMATE AND SACCHARIN IN AN AMOUNT OF ABOUT 40 TO 82 MILLIGRAMS, THE SACCHARIN IN SAID MIXTURE CONSTITUTING FROM 5% TO 25% THEREOF.
Claim 2
Dependent Claim
48 words
A TEA BAG COMPRISING A SEALED PAPER BAG CONTAINING TEA, SAID PAPER BEING WATER PERVIOUS AND BEING IMPREGNATED WITH A MIXTURE CONSISTING ESSENTIALLY OF SODIUM CYCLAMATE AND SACCHARIN IN AN AMOUNT OF ABOUT 40 TO 82 MILLIGRAMS, THE SACCHARIN IN SAID MIXTURE CONSTITUTING FROM 5% TO 25% THEREOF.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |