US3232812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for the lining of hollow bodies
Assignee: Hoechst AG
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Filing: 1962-06-29
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Granted: 1966-02-01
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Expires: 1982-06-29
Abstract
No abstract record available.
Inventors
- 👤 Lorentz Guido Max Rudolf
- 👤 Stroh Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/26; B29C63/30; B05; B05C; B05C7/00; B05C7/06; B05C7/08; B05D; B05D7/00; B05D7/22; B05D7/222; B05D7/225; B28; B28B; B28B21/00; B28B21/92; B28B21/94; F; F16; F16L; F16L58/00; F16L58/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS FOR THE LINING OF A HOLLOW BODY WHICH COMPRISES APPLYING TO THE INNER SURFACE OF A ROTATING HOLLOW BODY A TROWELLING MASS HARDENABLE INTHE COLD STATE COMPRISING A HARDENABLE SYNTHETIC PLASTIC MATERIAL AS BINDING AGENT AND A FILLER, PRESSING AGAINST SAID TROWELLING MASS A SMOOTH SHEET OF PLASTIC MATERIAL CAPABLE OF RESISTING SOLUTION AND SWELLING BY THE BINDING AGENT OF THE TROWELLING MASS, THEREBY COMPACTING THE TROWELLING MASS AND FORMING A SMOOTH INTERIOR LINING INTHE HOLLOW BODY.
Claim 2
Dependent Claim
79 words
A PROCESS FOR THE LINING OF A HOLLOW BODY WHICH COMPRISES APPLYING TO THE INNER SURFACE OF A ROTATING HOLLOW BODY A TROWELLING MASS HARDENABLE INTHE COLD STATE COMPRISING A HARDENABLE SYNTHETIC PLASTIC MATERIAL AS BINDING AGENT AND A FILLER, PRESSING AGAINST SAID TROWELLING MASS A SMOOTH SHEET OF PLASTIC MATERIAL CAPABLE OF RESISTING SOLUTION AND SWELLING BY THE BINDING AGENT OF THE TROWELLING MASS, THEREBY COMPACTING THE TROWELLING MASS AND FORMING A SMOOTH INTERIOR LINING INTHE HOLLOW BODY.
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |