Patent US3328232A successfully refreshed from Google Patents.
US3328232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roofing installation
Assignee: Armstrong World Industries Inc
•
Filing: 1962-12-14
•
Granted: 1967-06-27
•
Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Lewis R Dunn
- 👤 Anthony J Zigment
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:45
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/38; E04D5/00; E04D5/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/31504; Y10T428/31652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FLASHING MATERIAL FOR USE IN A ROOF INSTALLATION AND ADAPTED TO MAINTAIN THE ROOF IN A SEALED CONDITION IN SPITE OF THE OPENING AND CLOSING OF THE JOINTS AND CRACKS, SAID FLASHING MATERIAL COMPRISING IN COMBINATION A TWOPLY LAMINATED BASE SHEET ADHESIVELY SECURED TO ADJACENT STRUCTURAL MEMBERS ON EACH SIDE OF A JOINT, AND A TOP, WEATHER-RESISTANT COATING OVERLAYING THE LAMINATED BASE SHEET, THE LAMINATED BASE SHEET COMPRISING A BOTTOM BREAKABLE LAMINA OF FELTED RUBBER-BONDED ASBESTOS FIBERS HAVING AFFIXED THERETO A TOP STRETCHABLE LAMINA OF CURED NEOPRENE HAVING A THICKNESS IN THE RANGE OF 0.005-0.03 INCH AND WHICH WILL NOT BREAK WHEN SAID BOTTOM LAMINA BREAKS.
Claim 2
Dependent Claim
107 words
A FLASHING MATERIAL FOR USE IN A ROOF INSTALLATION AND ADAPTED TO MAINTAIN THE ROOF IN A SEALED CONDITION IN SPITE OF THE OPENING AND CLOSING OF THE JOINTS AND CRACKS, SAID FLASHING MATERIAL COMPRISING IN COMBINATION A TWOPLY LAMINATED BASE SHEET ADHESIVELY SECURED TO ADJACENT STRUCTURAL MEMBERS ON EACH SIDE OF A JOINT, AND A TOP, WEATHER-RESISTANT COATING OVERLAYING THE LAMINATED BASE SHEET, THE LAMINATED BASE SHEET COMPRISING A BOTTOM BREAKABLE LAMINA OF FELTED RUBBER-BONDED ASBESTOS FIBERS HAVING AFFIXED THERETO A TOP STRETCHABLE LAMINA OF CURED NEOPRENE HAVING A THICKNESS IN THE RANGE OF 0.005-0.03 INCH AND WHICH WILL NOT BREAK WHEN SAID BOTTOM LAMINA BREAKS.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |