US3518800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flooring system
Assignee: Connor Forest Industries
•
Filing: 1969-06-24
•
Granted: 1970-07-07
•
Expires: 1989-06-24
Abstract
No abstract record available.
Inventors
- 👤 Henry G Tank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:07
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/18; E04F15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1666061A
Cited
US1302578A
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US1672255A
Cited
US2895704A
Cited
US2882560A
Cited
US3270475A
Cited
US3271916A
Cited
US3359696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |