Patent US2737845A successfully refreshed from Google Patents.
US2737845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection indicating and viewing instrument assembly
Assignee: GLOWMETER Corp
•
Filing: 1951-03-20
•
Granted: 1956-03-13
•
Expires: 1971-03-20
Abstract
No abstract record available.
Inventors
- 👤 Agis I Mihalakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:08
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/26; F41H5/266
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1572671A
Cited
US1760163A
Cited
US2051593A
Cited
US2041194A
Cited
US2178637A
Cited
US2191045A
Cited
US2264044A
Cited
US2365613A
Cited
US2382631A
Cited
US2471800A
Cited
US2453336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |