Patent US3323684A successfully refreshed from Google Patents.
US3323684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtration device for plastic canteen
Assignee: Individual
•
Filing: 1965-10-21
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Granted: 1967-06-06
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Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Philip E Durand
- 👤 Jack F Furrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:08
CPC Classifications
A; A45; A45F; A45F3/00; A45F3/16; C; C02; C02F; C02F1/00; C02F1/001; C02F1/002; A45F2003/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A SCREW-ON CAP FOR A FLUID CONTAINER HAVING AN EXTERNALLY THREADED SPOUT THEREON COMPRISING A CAP BODY HAVING AN INTERNALLY THREADED GENERALLY CYLINDRICAL OPENING THEREIN AND MEANS LOCATED AT THE INNER END OF SAID OPENING CAPABLE OF FORMING A FLUID-TIGHT SEAL WITH THE END OF SAID SPOUT WHEN SAID CAP IS TIGHTLY SCREWED ON SAID SPOUT, SAID BODY BEING PROVIDED WITH A PLURALITY OF SPACED OPENINGS THERETHROUGH EXTENDING FROM THE EXTERIOR THEREOF THROUGH THE SIDES OF SAID CYLINDRICAL OPENING NEAR THE INNER END OF SAID CYLINDRICAL OPENING, SAID SPACED OPENINGS HAVING A SUBSTANTIAL PORTION THEREOF LOCATED OUTWARDLY OF SAID SEAL-FORMING MEANS, EACH OF SAID SPACED OPENINGS BEING SMALLER IN SIZE THAN THE OPENING IN SAID SPOUT WHEREBY FLUID MAY PASS THROUGH SAID SPACED OPENINGS INTO SAID CONTAINER WHEN SAID CAP IS PARTIALLY UNSCREWED ON SAID SPOUT AND PARTICLES OF SOLID MATTER IN SAID FLUID, WHICH ARE LARGER THAN SAID SPACED OPENINGS THROUGH SAID CAP, WILL BE PREVENTED FROM ENTERING SAID CONTAINER.
Claim 2
Dependent Claim
161 words
A SCREW-ON CAP FOR A FLUID CONTAINER HAVING AN EXTERNALLY THREADED SPOUT THEREON COMPRISING A CAP BODY HAVING AN INTERNALLY THREADED GENERALLY CYLINDRICAL OPENING THEREIN AND MEANS LOCATED AT THE INNER END OF SAID OPENING CAPABLE OF FORMING A FLUID-TIGHT SEAL WITH THE END OF SAID SPOUT WHEN SAID CAP IS TIGHTLY SCREWED ON SAID SPOUT, SAID BODY BEING PROVIDED WITH A PLURALITY OF SPACED OPENINGS THERETHROUGH EXTENDING FROM THE EXTERIOR THEREOF THROUGH THE SIDES OF SAID CYLINDRICAL OPENING NEAR THE INNER END OF SAID CYLINDRICAL OPENING, SAID SPACED OPENINGS HAVING A SUBSTANTIAL PORTION THEREOF LOCATED OUTWARDLY OF SAID SEAL-FORMING MEANS, EACH OF SAID SPACED OPENINGS BEING SMALLER IN SIZE THAN THE OPENING IN SAID SPOUT WHEREBY FLUID MAY PASS THROUGH SAID SPACED OPENINGS INTO SAID CONTAINER WHEN SAID CAP IS PARTIALLY UNSCREWED ON SAID SPOUT AND PARTICLES OF SOLID MATTER IN SAID FLUID, WHICH ARE LARGER THAN SAID SPACED OPENINGS THROUGH SAID CAP, WILL BE PREVENTED FROM ENTERING SAID CONTAINER.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |