US3538665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parquet flooring
Assignee: Bauwerk AG
•
Filing: 1968-04-15
•
Granted: 1970-11-10
•
Expires: 1988-04-15
Abstract
No abstract record available.
Inventors
- 👤 Paul Gohner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:26
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/022; E04F15/04; E04F15/041; E04F15/18; E04F15/20; E04F15/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US764948A
Cited
US1433077A
Cited
US1677284A
Cited
US1940377A
Cited
US1954858A
Cited
GB422221A
Cited
FR1019238A
Cited
USRE24246E
Cited
GB885698A
Cited
US3360462A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |