US2909400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescoping support frame
Assignee: PRODUCTS FOR INDUSTRY
•
Filing: 1956-07-19
•
Granted: 1959-10-20
•
Expires: 1976-07-19
Abstract
No abstract record available.
Inventors
- 👤 Johnston David Bruce
- 👤 Peter W R Johnson
- 👤 Nicholas G Cristy
- 👤 John H Trautmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/02; A47B91/022; A47B91/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2274553A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |