US2721674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid resistant container
Assignee: Individual
•
Filing: 1950-04-27
•
Granted: 1955-10-25
•
Expires: 1970-04-27
Abstract
No abstract record available.
Inventors
- 👤 Boris L Lazard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:22
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/08; B65D41/083; B65D39/00; B65D39/08; B65D39/082; B65D39/086; B65D77/00; B65D77/04; B65D77/06; B65D85/00; B65D85/70; B65D85/84; Y; Y10; Y10S; Y10S220/00; Y10S220/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A DEVICE OF THE CLASS DESCRIBED COMPRISING AN OUTER RIGID CONTAINER HAVING A TOP AND BOTTOM, AN INNER CONTAINER FORMED OF FLEXIBLE PLASTIC MATERIAL AND SUBSTANTIALLY TUBE-LIKE IN FORMATION THE ENDS THEREOF BEING SEALED AND FOLDED IN INVERTED PLEAT-LIKE FORMATION, SPLIT SPRING RINGS WITHIN SAID FLEXIBLE CONTAINER ADJACENT THE ENDS THEREOF TENDING TO SECURE THE LATTER AGAINST TORSIONAL MOVEMENT WITHIN THE OUTER CONTAINER, SAID RINGS BEING PLASTIC COVERED, MEANS FORMED WITHIN SAID OUTER CONTAINER AND CO-ACTING WITH SAID SPLIT SPRING RINGS TO RETAIN THE LATTER IN PREDETERMINED POSITIONS WITH RESPECT TO SAID OUTER CONTAINER, CLAMPING STRIPS ENGAGING THE FOLDED SEALED PORTIONS OF THE INNER CONTAINER AT EACH END THEREOF AND EXTENDING SUBSTANTIALLY DIAMETRICALLY OF THE SAME TO FURTHER SEAL SAID INNER CONTAINER, AND MEANS SECURING SAID STRIPS, RESPECTIVELY, TO THE TOP AND BOTTOM OF THE RIGID CONTAINER TO PREVENT LONGITUDINAL AND LATERAL MOVEMENT OF THE INNER CONTAINER THEREWITHIN.
Claim 2
Independent Claim
148 words
A DEVICE OF THE CLASS DESCRIBED COMPRISING AN OUTER RIGID CONTAINER HAVING A TOP AND BOTTOM, AN INNER CONTAINER FORMED OF FLEXIBLE PLASTIC MATERIAL AND SUBSTANTIALLY TUBE-LIKE IN FORMATION THE ENDS THEREOF BEING SEALED AND FOLDED IN INVERTED PLEAT-LIKE FORMATION, SPLIT SPRING RINGS WITHIN SAID FLEXIBLE CONTAINER ADJACENT THE ENDS THEREOF TENDING TO SECURE THE LATTER AGAINST TORSIONAL MOVEMENT WITHIN THE OUTER CONTAINER, SAID RINGS BEING PLASTIC COVERED, MEANS FORMED WITHIN SAID OUTER CONTAINER AND CO-ACTING WITH SAID SPLIT SPRING RINGS TO RETAIN THE LATTER IN PREDETERMINED POSITIONS WITH RESPECT TO SAID OUTER CONTAINER, CLAMPING STRIPS ENGAGING THE FOLDED SEALED PORTIONS OF THE INNER CONTAINER AT EACH END THEREOF AND EXTENDING SUBSTANTIALLY DIAMETRICALLY OF THE SAME TO FURTHER SEAL SAID INNER CONTAINER, AND MEANS SECURING SAID STRIPS, RESPECTIVELY, TO THE TOP AND BOTTOM OF THE RIGID CONTAINER TO PREVENT LONGITUDINAL AND LATERAL MOVEMENT OF THE INNER CONTAINER THEREWITHIN.
References Cited (Backward Citations)
US308704A
Cited
US1540563A
Cited
GB190507763A
Cited
US1753458A
Cited
US1575681A
Cited
US1574690A
Cited
US1709701A
Cited
FR662970A
Cited
US2072426A
Cited
US2072802A
Cited
US2070231A
Cited
FR805165A
Cited
US2293182A
Cited
US2209403A
Cited
US2301128A
Cited
US2312280A
Cited
US2326263A
Cited
US2338604A
Cited
US2395606A
Cited
US2373221A
Cited
US2537466A
Cited
US2495817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |