US3492192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellular plastic roofing material and method of making the same
Assignee: Shelter for World Inc
•
Filing: 1967-03-02
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Granted: 1970-01-27
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Expires: 1987-03-02
Abstract
No abstract record available.
Inventors
- 👤 Edward P Bullard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:08
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/34; E; E04; E04D; E04D3/00; E04D3/02; E04D3/18; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249986
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2110470A
Cited
US2855021A
Cited
US3025202A
Cited
US2975488A
Cited
US3094447A
Cited
US3382302A
Cited
US3373074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |