US3015840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous hinge
Assignee: WEATHER SEAL Inc
•
Filing: 1958-09-22
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Granted: 1962-01-09
•
Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Harold E Eskridge
- 👤 Waldo O Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:19
CPC Classifications
E; E05; E05D; E05D1/00; E05D1/04; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |