US2836862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable floor construction
Assignee: S M LAWSON JR
•
Filing: 1953-01-23
•
Granted: 1958-06-03
•
Expires: 1973-01-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:27
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/04; E04F2201/00; E04F2201/01; E04F2201/0107; E04F2201/02; E04F2201/023; E04F2201/05; E04F2201/0517
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1045219A
Cited
US1511696A
Cited
US1921734A
Cited
US1944237A
Cited
US2466613A
Cited
US2650395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |