US3547054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding-telescoping support
Assignee: L E MASON Co
•
Filing: 1968-10-31
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Granted: 1970-12-15
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Expires: 1988-10-31
Abstract
No abstract record available.
Inventors
- 👤 Robert J Caldwell
- 👤 Kenneth J Sullo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:37
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/08; A47B3/0809; A47B3/0815; A47B2003/0821; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32327; Y10T403/32336; Y10T403/32385
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |