US2904985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1958-06-13
•
Granted: 1959-09-22
•
Expires: 1978-06-13
Abstract
No abstract record available.
Inventors
- 👤 George E Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:51
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/002; E05B67/00; E05B67/38; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/437; Y10T70/446; Y10T70/452; Y10T70/461; Y10T70/487; Y10T70/80; Y10T70/8432; Y10T70/8649
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1369506A
Cited
US1486037A
Cited
US2140490A
Cited
US2375488A
Cited
GB571487A
Cited
US2670623A
Cited
DE861805C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |