Patent US2699879A successfully refreshed from Google Patents.
US2699879A
Expired / Lapsed
US
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Industrial lift truck with clamp attachment
Assignee: National Gypsum Co
•
Filing: 1949-11-05
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Granted: 1955-01-18
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Expires: 1969-11-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Bertram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:57
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/12; B66F9/18
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |