US2618010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproof door hinge
Assignee: Individual
•
Filing: 1949-06-17
•
Granted: 1952-11-18
•
Expires: 1969-06-17
Abstract
No abstract record available.
Inventors
- 👤 Philip C Helz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:49
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/04; E05D2011/045; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE310237C
Cited
DE155502C
Cited
DE633578C
Cited
GB190205589A
Cited
US863128A
Cited
US1125177A
Cited
US2248372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |