Patent US5473450A successfully refreshed from Google Patents.
US3094492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granular porous mass for storage of acetylene and method of manufacturing same
Assignee: BOC Group Ltd
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Filing: 1960-03-14
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Granted: 1963-06-18
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Expires: 1980-03-14
Abstract
No abstract record available.
Inventors
- 👤 Miller Samuel Aaron
- 👤 Mash Geoffrey Colin
- 👤 Tebboth John Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:53
CPC Classifications
C; C10; C10L; C10L3/00; C10L3/02; C10L3/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
THE METHOD OF MANUFACTURING A GRANULAR POROUS MASS FOR FILLING PRESSURE VESSELS FOR THE STORAGE OF ACETYLENE DISSOLVED UNDER PRESSURE IN A SOLVENT, WHICH COMPRISES THE STEPS OF MIXING KISELGUR WITH AN AQUEOUS DISPERSION OF A MELAAMINE-FORMALDEHYDE RESIN TO FORM A HOMOGENOUS MASS, DRYING SAID MASS AT A TEMPERATURE BELOW 200*C. AND GRANULATING THE DRIED MASS, THE AMOUNT OF MELAMINE-FORMALDEHYDE RESIN BEING FROM 5-15% BY WEIGHT OF THE DRIED MASS.
Claim 2
Independent Claim
70 words
THE METHOD OF MANUFACTURING A GRANULAR POROUS MASS FOR FILLING PRESSURE VESSELS FOR THE STORAGE OF ACETYLENE DISSOLVED UNDER PRESSURE IN A SOLVENT, WHICH COMPRISES THE STEPS OF MIXING KISELGUR WITH AN AQUEOUS DISPERSION OF A MELAAMINE-FORMALDEHYDE RESIN TO FORM A HOMOGENOUS MASS, DRYING SAID MASS AT A TEMPERATURE BELOW 200*C. AND GRANULATING THE DRIED MASS, THE AMOUNT OF MELAMINE-FORMALDEHYDE RESIN BEING FROM 5-15% BY WEIGHT OF THE DRIED MASS.
Claim 3
Dependent Claim
35 words
A POROUS MASS FOR FILLING PRESSURE VESSELS FOR THE STORAGE OF ACETYLENE DISSOLVED UNDER PRESSURE IN A SOLVENT, COMPRISING GRANULES FORMED OF KISELGUHR BONDED WITH 5-15% BY WEIGHT OF THE MASS OF A MELAMINE-FORMALDEHYDE RESIN.
Claim 4
Dependent Claim
35 words
A POROUS MASS FOR FILLING PRESSURE VESSELS FOR THE STORAGE OF ACETYLENE DISSOLVED UNDER PRESSURE IN A SOLVENT, COMPRISING GRANULES FORMED OF KISELGUHR BONDED WITH 5-15% BY WEIGHT OF THE MASS OF A MELAMINE-FORMALDEHYDE RESIN.
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |