US3526296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable staging
Assignee: DANIEL R STEVENS
•
Filing: 1969-03-26
•
Granted: 1970-09-01
•
Expires: 1989-03-26
Abstract
No abstract record available.
Inventors
- 👤 Daniel R Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:30
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/24; E04G3/26; E04G3/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |