US2342479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for wall construction
Assignee: Johns Manville Corp
•
Filing: 1941-06-25
•
Granted: 1944-02-22
•
Expires: 1961-06-25
Abstract
No abstract record available.
Inventors
- 👤 William S Miles
- 👤 Paul A Voigt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:38
CPC Classifications
E; E04; E04F; E04F21/00; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53657; Y10T29/53796; Y10T29/53896; Y10T29/539
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) | 1947-02-21 | 1947-08-23 | 1948-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-21 | 1951-08-23 | 1952-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-21 | 1955-08-23 | 1956-02-22 | $7700.00 | Window Closed / Lapsed |