US3420560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Masonry wall joist hanger
Assignee: JEROME E PFAHNING
•
Filing: 1966-05-23
•
Granted: 1969-01-07
•
Expires: 1986-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jerome E Pfahning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:35
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; E04B1/2612
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US247050A
Cited
US271730A
Cited
US824470A
Cited
US1055050A
Cited
US1692351A
Cited
CH172684A
Cited
US2637608A
Cited
US2900684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |