US3548559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor panel
Assignee: Donn Inc
•
Filing: 1969-05-05
•
Granted: 1970-12-22
•
Expires: 1989-05-05
Abstract
No abstract record available.
Inventors
- 👤 Gerald Levine
- 👤 Gerald P Reville Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:56
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/024; E04F15/02405; E04F15/02435; E04F15/02441; E04F15/02417; E04F15/02423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1851055A
Cited
US2278331A
Cited
US2579157A
Cited
GB715083A
Cited
FR1389020A
Cited
US3450593A
Cited
US3396501A
Cited
US3443349A
Cited
FR90081E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |