Patent US4336130A successfully refreshed from Google Patents.
Patent US3158667A successfully refreshed from Google Patents.
US3158667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a plastic spray coated floating roof
Assignee: Chicago Bridge and Iron Co
•
Filing: 1961-05-10
•
Granted: 1964-11-24
•
Expires: 1981-05-10
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Michaels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:46
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/14; B32; B32B; B32B27/00; B29K; B29K2105/00; B29K2105/06; B29K2105/20; B29L; B29L2031/00; B29L2031/56; B29L2031/565; B29L2031/712; B29L2031/7126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF FORMING A FLOATING ROOF IN PLACE WITHIN A VESSEL FOR THE STORAGE OF VOLATILE LIQUIDS COMPRISING THE STEPS OF SECURING A SHEET OF A THIN MATERIAL IN A SUBSTANTIALLY HORIZONTAL POSITION COVERING SUBSTANTIALLY THE ENTIRE CROSS-SECTIONAL AREA OF SAID VESSEL, SECURING AN UPSTANDING RIM SEAL TO THE EDGE OF SAIDSHEET ADJACENT THE WALL OF SAID VESSEL TO FORM A BUYANT STURCTURE, COATING SAID SHEET AND SAID RIM SEAL WITH A LAYER OF A POLYMERIZABLE PLASTIC MATERIAL WHICH IN ITS POLYMERIZED FORM IS RELATIVELY LIGHT AND UNAFFECTED BY CONTACT WITH SAID VOLATILE LIQUIDS, AND POLYMERIZING SAID PLASTIC MATERIAL.
Claim 2
Independent Claim
100 words
THE METHOD OF FORMING A FLOATING ROOF IN PLACE WITHIN A VESSEL FOR THE STORAGE OF VOLATILE LIQUIDS COMPRISING THE STEPS OF SECURING A SHEET OF A THIN MATERIAL IN A SUBSTANTIALLY HORIZONTAL POSITION COVERING SUBSTANTIALLY THE ENTIRE CROSS-SECTIONAL AREA OF SAID VESSEL, SECURING AN UPSTANDING RIM SEAL TO THE EDGE OF SAIDSHEET ADJACENT THE WALL OF SAID VESSEL TO FORM A BUYANT STURCTURE, COATING SAID SHEET AND SAID RIM SEAL WITH A LAYER OF A POLYMERIZABLE PLASTIC MATERIAL WHICH IN ITS POLYMERIZED FORM IS RELATIVELY LIGHT AND UNAFFECTED BY CONTACT WITH SAID VOLATILE LIQUIDS, AND POLYMERIZING SAID PLASTIC MATERIAL.
References Cited (Backward Citations)
US1887847A
Cited
US2567920A
Cited
GB815105A
Cited
US2824036A
Cited
US2873042A
Cited
US3001542A
Cited
US2907627A
Cited
US2919047A
Cited
US3036342A
Cited
US2976577A
Cited
US3082486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |