US2366149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof structure
Assignee: United States Gypsum Co
•
Filing: 1943-08-02
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Granted: 1944-12-26
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Expires: 1963-08-02
Abstract
No abstract record available.
Inventors
- 👤 John A Robertson
- 👤 Duncan S Payne
- 👤 Arendt Beach Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:31
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/02; E04B7/20; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/161; Y10T428/169; Y10T428/24; Y10T428/24174; Y10T428/24182
Claims Analysis
Total Claims: 0
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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) | 1947-12-26 | 1948-06-26 | 1948-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-26 | 1952-06-26 | 1952-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-26 | 1956-06-26 | 1956-12-26 | $7700.00 | Window Closed / Lapsed |