Patent US5436975A successfully refreshed from Google Patents.
Patent US2560878A successfully refreshed from Google Patents.
US2560878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable stage
Assignee: Individual
•
Filing: 1950-07-06
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Granted: 1951-07-17
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Expires: 1970-07-06
Abstract
No abstract record available.
Inventors
- 👤 Claude W Kyle
- 👤 Thomas E Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:16
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/025; B60P3/0252; E; E04; E04H; E04H3/00; E04H3/10; E04H3/22; E04H3/24
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) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |