US2153887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible cement roofing
Assignee: Philip Carey Manufacturing Co
•
Filing: 1935-09-06
•
Granted: 1939-04-11
•
Expires: 1955-09-06
Abstract
No abstract record available.
Inventors
- 👤 Harold W Greider
- 👤 George A Fasold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:54
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/14; E04D5/141; E04D5/143; E04D5/10; E04D5/148; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24033; Y10T428/24041; Y10T428/2405; Y10T428/24355; Y10T428/24372; Y10T428/24421; Y10T428/2443; Y10T428/31504; Y10T428/31815
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-04-10 | 1942-10-10 | 1943-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-04-10 | 1946-10-10 | 1947-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-04-10 | 1950-10-10 | 1951-04-11 | $7700.00 | Window Closed / Lapsed |