US3203146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall construction
Assignee: Johns Manville Corp
•
Filing: 1962-08-28
•
Granted: 1965-08-31
•
Expires: 1982-08-28
Abstract
No abstract record available.
Inventors
- 👤 David C Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:31
CPC Classifications
E; E04; E04D; E04D7/00; E04D13/00; E04D13/16; E04D13/1606
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A WALL CONSTRUCTION COMPRISING A PLURALITY OF SPACED SUPPORTS, A PLURALITY OF VAPOR PERMEABLE BOARDS CONTACTING THE SUPPORTS ADJACENT THE ENDS OF THE BOARDS, A CEMENTITIOUS MIXTURE ADHERING TO THE SIDE OF SAID BOARDS OPPOSITE THE SIDE ADJACENT SAID SUPPORTS AND FORMING WITH SAID BOARDS A SOLID CONTINUOUS WALL, A VAPOR IMPERMEABLE COVERING ON THE SIDE OF SAID CEMENTITIOUS MIXTURE OPPOSITE SAID BOARDS, AND A SHEET OF VAPOR IMPERMEABLE MATERIAL ON THE SIDE OF THE BOARDS OPPOSITE THE CEMENTITIOUS MIXTURE, SAID SHEET HAVING A PLURALITY OF MINUTE OPENINGS IN THE AREAS NOT ENGAGED BY THE SUPPORTS, WHEREBY VAPOR MAY PASS FROM THE CEMENTITIOUS MIXTURE THROUGH THE MINUTE OPEINGS TO ALLOW SAID MIXTURE TO CURE.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |