US2930441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling scaffold
Assignee: Individual
•
Filing: 1957-05-31
•
Granted: 1960-03-29
•
Expires: 1977-05-31
Abstract
No abstract record available.
Inventors
- 👤 Ida L Lacy
- 👤 Thomas A Tennyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:43
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US39849A
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US79399A
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US461102A
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US486804A
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US640050A
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US1275827A
Cited
US1929325A
Cited
US2060046A
Cited
US2435755A
Cited
US2485165A
Cited
US2600199A
Cited
US2787716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |