US3149891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible desk
Assignee: General Fireproofing Co
•
Filing: 1962-04-23
•
Granted: 1964-09-22
•
Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Rudolph H Wilmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:07
CPC Classifications
A; A47; A47B; A47B17/00; A47B17/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1918780A
Cited
US2146939A
Cited
FR1132117A
Cited
US2912294A
Cited
US2992055A
Cited
FR1237273A
Cited
US3096130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |