US2977168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically adjustable safety table for near-counter-balanced supporting of instruments
Assignee: F AND F KOENIGKRAMER CO
•
Filing: 1958-03-03
•
Granted: 1961-03-28
•
Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Philip C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:31
CPC Classifications
A; A47; A47B; A47B9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US666017A
Cited
US709612A
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US732418A
Cited
US920135A
Cited
US1550944A
Cited
US2645538A
Cited
US2628142A
Cited
US2792268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |