US2190654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roofing
Assignee: LEHON CO
•
Filing: 1938-04-29
•
Granted: 1940-02-20
•
Expires: 1958-04-29
Abstract
No abstract record available.
Inventors
- 👤 Frank G Eichhorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:53
CPC Classifications
B; B44; B44B; B44B5/00; B44B5/0004; B44B5/0009; E; E04; E04D; E04D1/00; E04D1/26; E04D2001/005; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24479; Y10T428/2457; Y10T428/24579; Y10T428/24612
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) | 1943-02-19 | 1943-08-21 | 1944-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-19 | 1947-08-21 | 1948-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-19 | 1951-08-21 | 1952-02-20 | $7700.00 | Window Closed / Lapsed |