Patent US2904102A successfully refreshed from Google Patents.
US2904102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat attachment for a chair
Assignee: Individual
•
Filing: 1957-04-29
•
Granted: 1959-09-15
•
Expires: 1977-04-29
Abstract
No abstract record available.
Inventors
- 👤 Komori Hiromu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:04
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/10; A47D1/103
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US28892A
Cited
US433649A
Cited
US534285A
Cited
US623675A
Cited
US995363A
Cited
US1126911A
Cited
US1247161A
Cited
US1452911A
Cited
US2332582A
Cited
US2521281A
Cited
US2605815A
Cited
US2624394A
Cited
US2707020A
Cited
US2769483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |