US2616768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crane supported movable selfleveling scaffold
Assignee: Individual
•
Filing: 1948-02-10
•
Granted: 1952-11-04
•
Expires: 1968-02-10
Abstract
No abstract record available.
Inventors
- 👤 Irwin G Stemm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:11
CPC Classifications
A; A01; A01D; A01D46/00; A01D46/20; B; B62; B62D; B62D33/00; B62D33/06; B62D33/063; B62D33/0636; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1410190A
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GB238065A
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US1728854A
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US1761726A
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US2099998A
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US2335584A
Cited
US2410030A
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US2450812A
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US2450152A
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US2500815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |