US2865058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite floors
Assignee: GUSTAF KAHR AB
•
Filing: 1956-04-04
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Granted: 1958-12-23
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Expires: 1976-04-04
Abstract
No abstract record available.
Inventors
- 👤 Andersson Sven Ake
- 👤 Magnusson Arvid Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:02
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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |