US2697528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for counting tiles and like articles
Assignee: Armstrong World Industries Inc
•
Filing: 1949-11-29
•
Granted: 1954-12-21
•
Expires: 1969-11-29
Abstract
No abstract record available.
Inventors
- 👤 Le Roy D Bishop
- 👤 Edward L Barnett
- 👤 Ellsworth K Gentel
- 👤 Howard H Leman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:39
CPC Classifications
G; G06; G06M; G06M9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE260536C
Cited
US802402A
Cited
US972649A
Cited
US1275960A
Cited
US1393009A
Cited
US1676911A
Cited
US1870443A
Cited
US2242933A
Cited
US2567531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |