Patent US781134A successfully refreshed from Google Patents.
US3371460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of filling aerosol containers and the like
Assignee: Individual
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Filing: 1965-09-21
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Granted: 1968-03-05
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Expires: 1985-09-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Rait
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:35
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/003; C; C09; C09K; C09K3/00; C09K3/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
A METHOD OF CHARGING A CONTAINER PARTIALLY FILLED WITH A FIRST LIQUID WHEREIN A SECOND LOW-BOILING LIQUID IS ADDED WITHOUT APPRECIABLE LOSS THROUGH VAPORIZATION, BOIL-OFF AND FROTHING COMPRISING THE STEPS OF: (A) CONTACTING THE UPPER SURFACE OF SAID FIRST LIQUID WITH A VOLTATILE LIQUID FREEZING MEANS HAVING A MUCH LOWER TEMPERATURE THAN SAID FIRST LIQUID THEREBY FREEZING SAID UPPER SURFACE TO A RELATIVELY THIN, SUBSTANTIALLY SOLID, FRANGIBLE, MELTABLE BARRIER (B) INTRODUCING SAID SECOND LIQUID TO UPPER SIDE OF SAID BARRIER, SAID SECOND LIQUID HAVING A BOILING POINT LOWER THAN THE FREEZING POINT OF SAID FIRST LIQUID, (C) SEALING OFF THE CONTENTS OF SAID CONTAINER FROM COMMUNICATION WITH THE ATMOSPHERE IN AT LEAST A TEMPORARY MANNER.
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |