US2774473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support-protector for fragile articles
Assignee: Keyes Fibre Corp
•
Filing: 1952-01-31
•
Granted: 1956-12-18
•
Expires: 1972-01-31
Abstract
No abstract record available.
Inventors
- 👤 Philip M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/05; B65D81/127; B65D81/133; B65D5/00; B65D5/42; B65D5/44; B65D5/50; B65D5/5028; B65D5/503
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1720889A
Cited
US1929944A
Cited
US1960279A
Cited
US2078927A
Cited
US2216339A
Cited
US2233044A
Cited
US2351754A
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US2568769A
Cited
GB615732A
Cited
US2428384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |