US2728336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt mastic kettles
Assignee: Individual
•
Filing: 1953-04-03
•
Granted: 1955-12-27
•
Expires: 1973-04-03
Abstract
No abstract record available.
Inventors
- 👤 Walter A Elgeti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:02
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/10; C10C3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US172129A
Cited
US176534A
Cited
US359229A
Cited
US754135A
Cited
GB191201601A
Cited
US1512389A
Cited
US2041359A
Cited
US2548177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |