Patent US2244181A successfully refreshed from Google Patents.
Patent US3530937A successfully refreshed from Google Patents.
Patent US3170597A successfully refreshed from Google Patents.
Patent US3437392A successfully refreshed from Google Patents.
US3437392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-dimensional structure having adjacent walls joined together
Assignee: Wesley Industries Inc
•
Filing: 1967-04-07
•
Granted: 1969-04-08
•
Expires: 1987-04-07
Abstract
No abstract record available.
Inventors
- 👤 George C Hilfinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:03
CPC Classifications
A; A47; A47B; A47B55/00; A47B88/00; A47B88/90; A47B88/941; A47B88/9412; A47B88/9414; A47B96/00; A47B96/20; A47B96/202
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CA711992A
Cited
US1398071A
Cited
US1649206A
Cited
US1851518A
Cited
US2274765A
Cited
US2701174A
Cited
US2985075A
Cited
US2932439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |