US3001331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal covering for roofs
Assignee: PENDENNIS Co Ltd
•
Filing: 1959-06-19
•
Granted: 1961-09-26
•
Expires: 1979-06-19
Abstract
No abstract record available.
Inventors
- 👤 Donald C Brunton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:28
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/24; E04D3/30; F; F24; F24S; F24S10/00; F24S20/00; F24S20/60; F24S20/67; Y; Y02; Y02B; Y02B10/00; Y02B10/20; Y02E; Y02E10/00; Y02E10/40; Y02E10/44; Y10; Y10S; Y10S126/00; Y10S126/907; Y10S126/908; Y10S165/00; Y10S165/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2106624A
Cited
US2625930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |