US2097988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interior wall construction for buildings
Assignee: ROSTONE Inc
•
Filing: 1934-01-13
•
Granted: 1937-11-02
•
Expires: 1954-01-13
Abstract
No abstract record available.
Inventors
- 👤 David E Ross
- 👤 Louis M Alt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:04
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/02; E04F19/04; E04F19/0459; E04F19/0463; E04B; E04B1/00; E04B1/18; E04B1/24; E04B2/00; E04B2/56; E04B2/58; E04F19/06; E04F19/062; E04F19/064; E04B2001/2481; E04B2001/2496; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/50; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/4588; Y10T24/45953
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) | 1940-11-01 | 1941-05-03 | 1941-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-11-01 | 1945-05-03 | 1945-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-11-01 | 1949-05-03 | 1949-11-02 | $7700.00 | Window Closed / Lapsed |