Patent US1592364A successfully refreshed from Google Patents.
US3294271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic barrel
Assignee: Individual
•
Filing: 1962-07-05
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Granted: 1966-12-27
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Expires: 1982-07-05
Abstract
No abstract record available.
Inventors
- 👤 Armbruster Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:49
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0209; B65D21/0212; B29; B29C; B29C49/00; B29C49/20; B29D; B29D22/00; B29K; B29K2105/00; B29K2105/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
AN INTEGRAL BARREL COMPRISING A TUBULAR MAIN SECTION AND FIRST AND SECOND END SECTIONS CLOSING SAID TUBULAR MAIN SECTION AT OPPOSITE ENDS THEREOF AND INTEGRAL AND THEREWITH, ALL SAID SECTIONS CONSISTING OF A HEAT EXPANSIVE SYNTHETIC RESIN MATERIAL TENDING TO EXPAND IN RESPOND TO HEATING AND AT LEAST ONE OF SAID END SECTIONS BEING OF CONCAVE-CONVEX SHAPE AND HAVING A CONVEX INNER SIDE FACING THE INTERIOR OF SAID MAIN SECTION; AT LEAST ONE ANNULAR REINFORCING ELEMENT SECURED TO AND SURROUNDING SAID MAIN SECTION, SAID REINFORCING ELEMENT CONSISTING OF A MATERIAL WHOSE EXPANSION IN RESPONSE TO HEATING IS LESS THAN THE EXPANSION OF THE MATERIAL OF SAID MAIN SECTION; AND AN ADDITIONAL ANNULAR REINFORCING ELEMENT EXTERNALLY ADJACENT TO AND SECURED TO SAID ONE END SECTION IN THE REGION OF THE CORRESPONDING END OF SAID MAIN SECTION, SAID ADDITIONAL REINFORCING ELEMENT COMPRISING AT LEAST ONE RING CONSISTING OF A METALLIC MATERIAL WHOSE EXPANSION
Claim 2
Dependent Claim
151 words
AN INTEGRAL BARREL COMPRISING A TUBULAR MAIN SECTION AND FIRST AND SECOND END SECTIONS CLOSING SAID TUBULAR MAIN SECTION AT OPPOSITE ENDS THEREOF AND INTEGRAL AND THEREWITH, ALL SAID SECTIONS CONSISTING OF A HEAT EXPANSIVE SYNTHETIC RESIN MATERIAL TENDING TO EXPAND IN RESPOND TO HEATING AND AT LEAST ONE OF SAID END SECTIONS BEING OF CONCAVE-CONVEX SHAPE AND HAVING A CONVEX INNER SIDE FACING THE INTERIOR OF SAID MAIN SECTION; AT LEAST ONE ANNULAR REINFORCING ELEMENT SECURED TO AND SURROUNDING SAID MAIN SECTION, SAID REINFORCING ELEMENT CONSISTING OF A MATERIAL WHOSE EXPANSION IN RESPONSE TO HEATING IS LESS THAN THE EXPANSION OF THE MATERIAL OF SAID MAIN SECTION; AND AN ADDITIONAL ANNULAR REINFORCING ELEMENT EXTERNALLY ADJACENT TO AND SECURED TO SAID ONE END SECTION IN THE REGION OF THE CORRESPONDING END OF SAID MAIN SECTION, SAID ADDITIONAL REINFORCING ELEMENT COMPRISING AT LEAST ONE RING CONSISTING OF A METALLIC MATERIAL WHOSE EXPANSION
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |