US2816436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furred wall construction
Assignee: United States Gypsum Co
•
Filing: 1954-03-19
•
Granted: 1957-12-17
•
Expires: 1974-03-19
Abstract
No abstract record available.
Inventors
- 👤 Nelsson Nels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:35
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/081; E04F13/0821; E04B; E04B2/00; E04B2/72; E04B2/723; E04B2002/726; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3459
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR961203A
Cited
US1969244A
Cited
US2048641A
Cited
US2317907A
Cited
US2347961A
Cited
US2661515A
Cited
US2641035A
Cited
US2620531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |