US3095291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling envelope with breakable diaphragm
Assignee: Individual
•
Filing: 1961-05-12
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Granted: 1963-06-25
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Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
- 👤 Albert A Robbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:51
CPC Classifications
F; F25; F25D; F25D5/00; F25D5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A COOLING ENVELOPE CONTAINING A COOLING REAGENT WITH BREAKABLE DIAPHRAGM COMPRISING AN OUTER ENVELOPE, CONSISTING OF AN UPPER AND A LOWER SHEET, SAID SHEETS BEING SUPERIMPOSED AND ALL OF THE ENGAGING EDGES OF THE SHEETS BEING HERMETICALLY SEALED, SAUD UPPER AND LOWER SHEETS BEING FORMED OF THIN FLEXIBLE PLASTIC SHEET METERIAL, A DIAPHRAGM ARRANGED BETWEEEN THE UPPER AND LOWER SHETS AND DIVIDING THE ENVELOPE INTO TWO COMPARTMENTS, SAID DIAPHRAGM BEING FORMED OF A THIN FLEXIBLE PLASTIC SHEET MATERIAL, SAID DIAPHRAGM BEING STRUCTURALLY WEAKER THAN THE UPPER AND LOWER SHEETS WHEREBY SAID DIAPHRAGM WILL RUPTURE UNDER IMPACT BEFORE THE UPPER AND LOWER SHEETS, SAID DIAPHRAGM BEING STRUCTURALLY WEAKENED BY ADDITION OF A SOLVENT PLASTICIZER THERETO, SAID PLASTICIZER BEING ADDED IN A PLURALITY OF DISCRETE SPOTS.
Claim 2
Dependent Claim
124 words
A COOLING ENVELOPE CONTAINING A COOLING REAGENT WITH BREAKABLE DIAPHRAGM COMPRISING AN OUTER ENVELOPE, CONSISTING OF AN UPPER AND A LOWER SHEET, SAID SHEETS BEING SUPERIMPOSED AND ALL OF THE ENGAGING EDGES OF THE SHEETS BEING HERMETICALLY SEALED, SAUD UPPER AND LOWER SHEETS BEING FORMED OF THIN FLEXIBLE PLASTIC SHEET METERIAL, A DIAPHRAGM ARRANGED BETWEEEN THE UPPER AND LOWER SHETS AND DIVIDING THE ENVELOPE INTO TWO COMPARTMENTS, SAID DIAPHRAGM BEING FORMED OF A THIN FLEXIBLE PLASTIC SHEET MATERIAL, SAID DIAPHRAGM BEING STRUCTURALLY WEAKER THAN THE UPPER AND LOWER SHEETS WHEREBY SAID DIAPHRAGM WILL RUPTURE UNDER IMPACT BEFORE THE UPPER AND LOWER SHEETS, SAID DIAPHRAGM BEING STRUCTURALLY WEAKENED BY ADDITION OF A SOLVENT PLASTICIZER THERETO, SAID PLASTICIZER BEING ADDED IN A PLURALITY OF DISCRETE SPOTS.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |