US2958403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demountable partition
Assignee: United States Gypsum Co
•
Filing: 1955-10-03
•
Granted: 1960-11-01
•
Expires: 1975-10-03
Abstract
No abstract record available.
Inventors
- 👤 John A Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:25
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7453; E04B2/76; E04B2/78
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US890285A
Cited
US2020502A
Cited
US2202861A
Cited
US2186953A
Cited
US2132601A
Cited
US2345650A
Cited
US2360500A
Cited
US2652907A
Cited
US2796158A
Cited
US2699669A
Cited
US2766855A
Cited
US2742117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |