US3108393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor guards
Assignee: Individual
•
Filing: 1960-10-28
•
Granted: 1963-10-29
•
Expires: 1980-10-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:42
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1452035A
Cited
US1922127A
Cited
US1959262A
Cited
US1913629A
Cited
US2030135A
Cited
DE705175C
Cited
US2292272A
Cited
US2815252A
Cited
US2844909A
Cited
US2886918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |